Vulnerability Details CVE-2021-21365
Bootstrap Package is a theme for TYPO3. It has been discovered that rendering content in the website frontend is vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability. Users of the extension, who have overwritten the affected templates with custom code must manually apply the security fix. Update to version 7.1.2, 8.0.8, 9.1.4, 10.0.10 or 11.0.3 of the Bootstrap Package that fix the problem described. Updated version are available from the TYPO3 extension manager, Packagist and at https://extensions.typo3.org/extension/download/bootstrap_package/.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.0%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
Products affected by CVE-2021-21365
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cpe:2.3:a:typo3:typo3:0.4.1
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cpe:2.3:a:typo3:typo3:10.0.0
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cpe:2.3:a:typo3:typo3:10.0.9
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cpe:2.3:a:typo3:typo3:11.0.0
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cpe:2.3:a:typo3:typo3:11.0.2
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cpe:2.3:a:typo3:typo3:3.8.1
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cpe:2.3:a:typo3:typo3:4.0
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cpe:2.3:a:typo3:typo3:4.0.0
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cpe:2.3:a:typo3:typo3:4.0.1
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cpe:2.3:a:typo3:typo3:4.0.10
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cpe:2.3:a:typo3:typo3:4.0.11
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cpe:2.3:a:typo3:typo3:4.0.12
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cpe:2.3:a:typo3:typo3:4.0.13
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cpe:2.3:a:typo3:typo3:4.0.2
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cpe:2.3:a:typo3:typo3:4.0.3
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cpe:2.3:a:typo3:typo3:4.0.4
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cpe:2.3:a:typo3:typo3:4.0.5
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cpe:2.3:a:typo3:typo3:4.0.6
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cpe:2.3:a:typo3:typo3:4.0.7
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cpe:2.3:a:typo3:typo3:4.0.8
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cpe:2.3:a:typo3:typo3:4.0.9
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cpe:2.3:a:typo3:typo3:4.1
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cpe:2.3:a:typo3:typo3:4.1.0
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cpe:2.3:a:typo3:typo3:4.1.1
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cpe:2.3:a:typo3:typo3:4.1.10
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cpe:2.3:a:typo3:typo3:4.1.11
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cpe:2.3:a:typo3:typo3:4.1.12
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cpe:2.3:a:typo3:typo3:4.1.13
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cpe:2.3:a:typo3:typo3:4.1.14
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cpe:2.3:a:typo3:typo3:4.1.15
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cpe:2.3:a:typo3:typo3:4.1.2
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cpe:2.3:a:typo3:typo3:4.1.3
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cpe:2.3:a:typo3:typo3:4.1.4
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cpe:2.3:a:typo3:typo3:4.1.5
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cpe:2.3:a:typo3:typo3:4.1.6
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cpe:2.3:a:typo3:typo3:4.1.7
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cpe:2.3:a:typo3:typo3:4.1.8
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cpe:2.3:a:typo3:typo3:4.1.9
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cpe:2.3:a:typo3:typo3:4.2
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cpe:2.3:a:typo3:typo3:4.2.0
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cpe:2.3:a:typo3:typo3:4.2.1
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cpe:2.3:a:typo3:typo3:4.2.10
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cpe:2.3:a:typo3:typo3:4.2.11
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cpe:2.3:a:typo3:typo3:4.2.12
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cpe:2.3:a:typo3:typo3:4.2.13
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cpe:2.3:a:typo3:typo3:4.2.14
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cpe:2.3:a:typo3:typo3:4.2.15
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cpe:2.3:a:typo3:typo3:4.2.16
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cpe:2.3:a:typo3:typo3:4.2.17
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cpe:2.3:a:typo3:typo3:4.2.2
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cpe:2.3:a:typo3:typo3:4.2.3
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cpe:2.3:a:typo3:typo3:4.2.4
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cpe:2.3:a:typo3:typo3:4.2.5
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cpe:2.3:a:typo3:typo3:4.2.6
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cpe:2.3:a:typo3:typo3:4.2.7
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cpe:2.3:a:typo3:typo3:4.2.8
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cpe:2.3:a:typo3:typo3:4.2.9
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cpe:2.3:a:typo3:typo3:4.3
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cpe:2.3:a:typo3:typo3:4.3.0
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cpe:2.3:a:typo3:typo3:4.3.1
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cpe:2.3:a:typo3:typo3:4.3.10
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cpe:2.3:a:typo3:typo3:4.3.11
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cpe:2.3:a:typo3:typo3:4.3.12
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cpe:2.3:a:typo3:typo3:4.3.13
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cpe:2.3:a:typo3:typo3:4.3.14
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cpe:2.3:a:typo3:typo3:4.3.2
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cpe:2.3:a:typo3:typo3:4.3.3
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cpe:2.3:a:typo3:typo3:4.3.4
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cpe:2.3:a:typo3:typo3:4.3.5
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cpe:2.3:a:typo3:typo3:4.3.6
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cpe:2.3:a:typo3:typo3:4.3.7
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cpe:2.3:a:typo3:typo3:4.3.8
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cpe:2.3:a:typo3:typo3:4.3.9
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cpe:2.3:a:typo3:typo3:4.4
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cpe:2.3:a:typo3:typo3:4.4.0
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cpe:2.3:a:typo3:typo3:4.4.1
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cpe:2.3:a:typo3:typo3:4.4.10
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cpe:2.3:a:typo3:typo3:4.4.11
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cpe:2.3:a:typo3:typo3:4.4.12
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cpe:2.3:a:typo3:typo3:4.4.13
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cpe:2.3:a:typo3:typo3:4.4.14
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cpe:2.3:a:typo3:typo3:4.4.15
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cpe:2.3:a:typo3:typo3:4.4.2
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cpe:2.3:a:typo3:typo3:4.4.3
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cpe:2.3:a:typo3:typo3:4.4.4
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cpe:2.3:a:typo3:typo3:4.4.5
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cpe:2.3:a:typo3:typo3:4.4.6
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cpe:2.3:a:typo3:typo3:4.4.7
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cpe:2.3:a:typo3:typo3:4.4.8
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cpe:2.3:a:typo3:typo3:4.4.9
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cpe:2.3:a:typo3:typo3:4.5
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cpe:2.3:a:typo3:typo3:4.5.0
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cpe:2.3:a:typo3:typo3:4.5.1
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cpe:2.3:a:typo3:typo3:4.5.10
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cpe:2.3:a:typo3:typo3:4.5.11
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cpe:2.3:a:typo3:typo3:4.5.12
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cpe:2.3:a:typo3:typo3:4.5.13
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cpe:2.3:a:typo3:typo3:4.5.14
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cpe:2.3:a:typo3:typo3:4.5.15
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cpe:2.3:a:typo3:typo3:4.5.16
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cpe:2.3:a:typo3:typo3:4.5.17
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cpe:2.3:a:typo3:typo3:4.5.18
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cpe:2.3:a:typo3:typo3:4.5.19
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cpe:2.3:a:typo3:typo3:4.5.2
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cpe:2.3:a:typo3:typo3:4.5.20
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cpe:2.3:a:typo3:typo3:4.5.21
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cpe:2.3:a:typo3:typo3:4.5.22
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cpe:2.3:a:typo3:typo3:4.5.23
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cpe:2.3:a:typo3:typo3:4.5.24
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cpe:2.3:a:typo3:typo3:4.5.25
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cpe:2.3:a:typo3:typo3:4.5.26
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cpe:2.3:a:typo3:typo3:4.5.27
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cpe:2.3:a:typo3:typo3:4.5.28
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cpe:2.3:a:typo3:typo3:4.5.29
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cpe:2.3:a:typo3:typo3:4.5.3
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cpe:2.3:a:typo3:typo3:4.5.30
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cpe:2.3:a:typo3:typo3:4.5.31
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cpe:2.3:a:typo3:typo3:4.5.32
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cpe:2.3:a:typo3:typo3:4.5.33
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cpe:2.3:a:typo3:typo3:4.5.34
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cpe:2.3:a:typo3:typo3:4.5.35
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cpe:2.3:a:typo3:typo3:4.5.36
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cpe:2.3:a:typo3:typo3:4.5.37
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cpe:2.3:a:typo3:typo3:4.5.38
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cpe:2.3:a:typo3:typo3:4.5.39
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cpe:2.3:a:typo3:typo3:4.5.4
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cpe:2.3:a:typo3:typo3:4.5.5
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cpe:2.3:a:typo3:typo3:4.5.6
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cpe:2.3:a:typo3:typo3:4.5.7
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cpe:2.3:a:typo3:typo3:4.5.8
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cpe:2.3:a:typo3:typo3:4.5.9
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cpe:2.3:a:typo3:typo3:4.6
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cpe:2.3:a:typo3:typo3:4.6.0
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cpe:2.3:a:typo3:typo3:4.6.1
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cpe:2.3:a:typo3:typo3:4.6.10
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cpe:2.3:a:typo3:typo3:4.6.11
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cpe:2.3:a:typo3:typo3:4.6.12
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cpe:2.3:a:typo3:typo3:4.6.13
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cpe:2.3:a:typo3:typo3:4.6.14
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cpe:2.3:a:typo3:typo3:4.6.15
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cpe:2.3:a:typo3:typo3:4.6.16
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cpe:2.3:a:typo3:typo3:4.6.17
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cpe:2.3:a:typo3:typo3:4.6.18
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cpe:2.3:a:typo3:typo3:4.6.2
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cpe:2.3:a:typo3:typo3:4.6.3
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cpe:2.3:a:typo3:typo3:4.6.4
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cpe:2.3:a:typo3:typo3:4.6.5
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cpe:2.3:a:typo3:typo3:4.6.6
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cpe:2.3:a:typo3:typo3:4.6.7
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cpe:2.3:a:typo3:typo3:4.6.8
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cpe:2.3:a:typo3:typo3:4.6.9
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cpe:2.3:a:typo3:typo3:4.7
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cpe:2.3:a:typo3:typo3:4.7.0
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cpe:2.3:a:typo3:typo3:4.7.1
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cpe:2.3:a:typo3:typo3:4.7.10
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cpe:2.3:a:typo3:typo3:4.7.11
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cpe:2.3:a:typo3:typo3:4.7.12
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cpe:2.3:a:typo3:typo3:4.7.13
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cpe:2.3:a:typo3:typo3:4.7.14
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cpe:2.3:a:typo3:typo3:4.7.15
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cpe:2.3:a:typo3:typo3:4.7.16
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cpe:2.3:a:typo3:typo3:4.7.17
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cpe:2.3:a:typo3:typo3:4.7.18
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cpe:2.3:a:typo3:typo3:4.7.19
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cpe:2.3:a:typo3:typo3:4.7.2
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cpe:2.3:a:typo3:typo3:4.7.20
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cpe:2.3:a:typo3:typo3:4.7.3
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cpe:2.3:a:typo3:typo3:4.7.4
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cpe:2.3:a:typo3:typo3:4.7.5
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cpe:2.3:a:typo3:typo3:4.7.6
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cpe:2.3:a:typo3:typo3:4.7.7
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cpe:2.3:a:typo3:typo3:4.7.8
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cpe:2.3:a:typo3:typo3:4.7.9
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cpe:2.3:a:typo3:typo3:6.0
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cpe:2.3:a:typo3:typo3:6.0.1
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cpe:2.3:a:typo3:typo3:6.0.10
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cpe:2.3:a:typo3:typo3:6.0.11
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cpe:2.3:a:typo3:typo3:6.0.12
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cpe:2.3:a:typo3:typo3:6.0.13
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cpe:2.3:a:typo3:typo3:6.0.14
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cpe:2.3:a:typo3:typo3:6.0.2
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cpe:2.3:a:typo3:typo3:6.0.3
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cpe:2.3:a:typo3:typo3:6.0.4
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cpe:2.3:a:typo3:typo3:6.0.5
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cpe:2.3:a:typo3:typo3:6.0.6
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cpe:2.3:a:typo3:typo3:6.0.7
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cpe:2.3:a:typo3:typo3:6.0.8
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cpe:2.3:a:typo3:typo3:6.0.9
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cpe:2.3:a:typo3:typo3:6.1
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cpe:2.3:a:typo3:typo3:6.1.1
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cpe:2.3:a:typo3:typo3:6.1.2
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cpe:2.3:a:typo3:typo3:6.1.3
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cpe:2.3:a:typo3:typo3:6.1.4
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cpe:2.3:a:typo3:typo3:6.1.5
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cpe:2.3:a:typo3:typo3:6.1.6
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cpe:2.3:a:typo3:typo3:6.1.7
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cpe:2.3:a:typo3:typo3:6.1.8
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cpe:2.3:a:typo3:typo3:6.1.9
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cpe:2.3:a:typo3:typo3:6.2
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cpe:2.3:a:typo3:typo3:6.2.0
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cpe:2.3:a:typo3:typo3:6.2.1
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cpe:2.3:a:typo3:typo3:6.2.10
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cpe:2.3:a:typo3:typo3:6.2.11
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cpe:2.3:a:typo3:typo3:6.2.12
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cpe:2.3:a:typo3:typo3:6.2.13
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cpe:2.3:a:typo3:typo3:6.2.14
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cpe:2.3:a:typo3:typo3:6.2.15
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cpe:2.3:a:typo3:typo3:6.2.16
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cpe:2.3:a:typo3:typo3:6.2.17
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cpe:2.3:a:typo3:typo3:6.2.18
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cpe:2.3:a:typo3:typo3:6.2.19
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cpe:2.3:a:typo3:typo3:6.2.2
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cpe:2.3:a:typo3:typo3:6.2.20
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cpe:2.3:a:typo3:typo3:6.2.21
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cpe:2.3:a:typo3:typo3:6.2.22
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cpe:2.3:a:typo3:typo3:6.2.23
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cpe:2.3:a:typo3:typo3:6.2.24
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cpe:2.3:a:typo3:typo3:6.2.25
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cpe:2.3:a:typo3:typo3:6.2.26
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cpe:2.3:a:typo3:typo3:6.2.27
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cpe:2.3:a:typo3:typo3:6.2.28
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cpe:2.3:a:typo3:typo3:6.2.29
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cpe:2.3:a:typo3:typo3:6.2.3
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cpe:2.3:a:typo3:typo3:6.2.30
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cpe:2.3:a:typo3:typo3:6.2.31
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cpe:2.3:a:typo3:typo3:6.2.32
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cpe:2.3:a:typo3:typo3:6.2.33
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cpe:2.3:a:typo3:typo3:6.2.34
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cpe:2.3:a:typo3:typo3:6.2.35
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cpe:2.3:a:typo3:typo3:6.2.36
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cpe:2.3:a:typo3:typo3:6.2.37
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cpe:2.3:a:typo3:typo3:6.2.38
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cpe:2.3:a:typo3:typo3:6.2.39
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cpe:2.3:a:typo3:typo3:6.2.4
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cpe:2.3:a:typo3:typo3:6.2.5
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cpe:2.3:a:typo3:typo3:6.2.54
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cpe:2.3:a:typo3:typo3:6.2.56
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cpe:2.3:a:typo3:typo3:6.2.57
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cpe:2.3:a:typo3:typo3:6.2.6
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cpe:2.3:a:typo3:typo3:6.2.7
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cpe:2.3:a:typo3:typo3:6.2.8
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cpe:2.3:a:typo3:typo3:6.2.9
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cpe:2.3:a:typo3:typo3:7.0.0
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cpe:2.3:a:typo3:typo3:7.0.1
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cpe:2.3:a:typo3:typo3:7.0.2
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cpe:2.3:a:typo3:typo3:7.1.0
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cpe:2.3:a:typo3:typo3:7.1.1
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cpe:2.3:a:typo3:typo3:8.0.0
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cpe:2.3:a:typo3:typo3:8.0.1
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cpe:2.3:a:typo3:typo3:8.0.7
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cpe:2.3:a:typo3:typo3:9.0.0
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cpe:2.3:a:typo3:typo3:9.0.3
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cpe:2.3:a:typo3:typo3:9.1.0
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cpe:2.3:a:typo3:typo3:9.1.2