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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-21370

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 56.0%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
Products affected by CVE-2021-21370
  • Typo3 » Typo3 » Version: 10.0.0
    cpe:2.3:a:typo3:typo3:10.0.0
  • Typo3 » Typo3 » Version: 10.0.10
    cpe:2.3:a:typo3:typo3:10.0.10
  • Typo3 » Typo3 » Version: 10.0.9
    cpe:2.3:a:typo3:typo3:10.0.9
  • Typo3 » Typo3 » Version: 10.1.0
    cpe:2.3:a:typo3:typo3:10.1.0
  • Typo3 » Typo3 » Version: 10.2.0
    cpe:2.3:a:typo3:typo3:10.2.0
  • Typo3 » Typo3 » Version: 10.2.1
    cpe:2.3:a:typo3:typo3:10.2.1
  • Typo3 » Typo3 » Version: 10.2.2
    cpe:2.3:a:typo3:typo3:10.2.2
  • Typo3 » Typo3 » Version: 10.3.0
    cpe:2.3:a:typo3:typo3:10.3.0
  • Typo3 » Typo3 » Version: 10.4.0
    cpe:2.3:a:typo3:typo3:10.4.0
  • Typo3 » Typo3 » Version: 10.4.1
    cpe:2.3:a:typo3:typo3:10.4.1
  • Typo3 » Typo3 » Version: 10.4.10
    cpe:2.3:a:typo3:typo3:10.4.10
  • Typo3 » Typo3 » Version: 10.4.11
    cpe:2.3:a:typo3:typo3:10.4.11
  • Typo3 » Typo3 » Version: 10.4.12
    cpe:2.3:a:typo3:typo3:10.4.12
  • Typo3 » Typo3 » Version: 10.4.13
    cpe:2.3:a:typo3:typo3:10.4.13
  • Typo3 » Typo3 » Version: 10.4.2
    cpe:2.3:a:typo3:typo3:10.4.2
  • Typo3 » Typo3 » Version: 10.4.3
    cpe:2.3:a:typo3:typo3:10.4.3
  • Typo3 » Typo3 » Version: 10.4.4
    cpe:2.3:a:typo3:typo3:10.4.4
  • Typo3 » Typo3 » Version: 10.4.5
    cpe:2.3:a:typo3:typo3:10.4.5
  • Typo3 » Typo3 » Version: 10.4.6
    cpe:2.3:a:typo3:typo3:10.4.6
  • Typo3 » Typo3 » Version: 10.4.7
    cpe:2.3:a:typo3:typo3:10.4.7
  • Typo3 » Typo3 » Version: 10.4.8
    cpe:2.3:a:typo3:typo3:10.4.8
  • Typo3 » Typo3 » Version: 10.4.9
    cpe:2.3:a:typo3:typo3:10.4.9
  • Typo3 » Typo3 » Version: 11.0.0
    cpe:2.3:a:typo3:typo3:11.0.0
  • Typo3 » Typo3 » Version: 11.0.2
    cpe:2.3:a:typo3:typo3:11.0.2
  • Typo3 » Typo3 » Version: 11.0.3
    cpe:2.3:a:typo3:typo3:11.0.3
  • Typo3 » Typo3 » Version: 11.1.0
    cpe:2.3:a:typo3:typo3:11.1.0
  • Typo3 » Typo3 » Version: 7.0.0
    cpe:2.3:a:typo3:typo3:7.0.0
  • Typo3 » Typo3 » Version: 7.0.1
    cpe:2.3:a:typo3:typo3:7.0.1
  • Typo3 » Typo3 » Version: 7.0.2
    cpe:2.3:a:typo3:typo3:7.0.2
  • Typo3 » Typo3 » Version: 7.1.0
    cpe:2.3:a:typo3:typo3:7.1.0
  • Typo3 » Typo3 » Version: 7.1.1
    cpe:2.3:a:typo3:typo3:7.1.1
  • Typo3 » Typo3 » Version: 7.1.2
    cpe:2.3:a:typo3:typo3:7.1.2
  • Typo3 » Typo3 » Version: 7.2.0
    cpe:2.3:a:typo3:typo3:7.2.0
  • Typo3 » Typo3 » Version: 7.2.7
    cpe:2.3:a:typo3:typo3:7.2.7
  • Typo3 » Typo3 » Version: 7.3.0
    cpe:2.3:a:typo3:typo3:7.3.0
  • Typo3 » Typo3 » Version: 7.3.1
    cpe:2.3:a:typo3:typo3:7.3.1
  • Typo3 » Typo3 » Version: 7.4.0
    cpe:2.3:a:typo3:typo3:7.4.0
  • Typo3 » Typo3 » Version: 7.5.0
    cpe:2.3:a:typo3:typo3:7.5.0
  • Typo3 » Typo3 » Version: 7.6.0
    cpe:2.3:a:typo3:typo3:7.6.0
  • Typo3 » Typo3 » Version: 7.6.1
    cpe:2.3:a:typo3:typo3:7.6.1
  • Typo3 » Typo3 » Version: 7.6.10
    cpe:2.3:a:typo3:typo3:7.6.10
  • Typo3 » Typo3 » Version: 7.6.11
    cpe:2.3:a:typo3:typo3:7.6.11
  • Typo3 » Typo3 » Version: 7.6.12
    cpe:2.3:a:typo3:typo3:7.6.12
  • Typo3 » Typo3 » Version: 7.6.13
    cpe:2.3:a:typo3:typo3:7.6.13
  • Typo3 » Typo3 » Version: 7.6.14
    cpe:2.3:a:typo3:typo3:7.6.14
  • Typo3 » Typo3 » Version: 7.6.15
    cpe:2.3:a:typo3:typo3:7.6.15
  • Typo3 » Typo3 » Version: 7.6.16
    cpe:2.3:a:typo3:typo3:7.6.16
  • Typo3 » Typo3 » Version: 7.6.17
    cpe:2.3:a:typo3:typo3:7.6.17
  • Typo3 » Typo3 » Version: 7.6.18
    cpe:2.3:a:typo3:typo3:7.6.18
  • Typo3 » Typo3 » Version: 7.6.19
    cpe:2.3:a:typo3:typo3:7.6.19
  • Typo3 » Typo3 » Version: 7.6.2
    cpe:2.3:a:typo3:typo3:7.6.2
  • Typo3 » Typo3 » Version: 7.6.20
    cpe:2.3:a:typo3:typo3:7.6.20
  • Typo3 » Typo3 » Version: 7.6.21
    cpe:2.3:a:typo3:typo3:7.6.21
  • Typo3 » Typo3 » Version: 7.6.22
    cpe:2.3:a:typo3:typo3:7.6.22
  • Typo3 » Typo3 » Version: 7.6.23
    cpe:2.3:a:typo3:typo3:7.6.23
  • Typo3 » Typo3 » Version: 7.6.24
    cpe:2.3:a:typo3:typo3:7.6.24
  • Typo3 » Typo3 » Version: 7.6.25
    cpe:2.3:a:typo3:typo3:7.6.25
  • Typo3 » Typo3 » Version: 7.6.26
    cpe:2.3:a:typo3:typo3:7.6.26
  • Typo3 » Typo3 » Version: 7.6.27
    cpe:2.3:a:typo3:typo3:7.6.27
  • Typo3 » Typo3 » Version: 7.6.28
    cpe:2.3:a:typo3:typo3:7.6.28
  • Typo3 » Typo3 » Version: 7.6.29
    cpe:2.3:a:typo3:typo3:7.6.29
  • Typo3 » Typo3 » Version: 7.6.3
    cpe:2.3:a:typo3:typo3:7.6.3
  • Typo3 » Typo3 » Version: 7.6.30
    cpe:2.3:a:typo3:typo3:7.6.30
  • Typo3 » Typo3 » Version: 7.6.31
    cpe:2.3:a:typo3:typo3:7.6.31
  • Typo3 » Typo3 » Version: 7.6.32
    cpe:2.3:a:typo3:typo3:7.6.32
  • Typo3 » Typo3 » Version: 7.6.4
    cpe:2.3:a:typo3:typo3:7.6.4
  • Typo3 » Typo3 » Version: 7.6.48
    cpe:2.3:a:typo3:typo3:7.6.48
  • Typo3 » Typo3 » Version: 7.6.5
    cpe:2.3:a:typo3:typo3:7.6.5
  • Typo3 » Typo3 » Version: 7.6.50
    cpe:2.3:a:typo3:typo3:7.6.50
  • Typo3 » Typo3 » Version: 7.6.6
    cpe:2.3:a:typo3:typo3:7.6.6
  • Typo3 » Typo3 » Version: 7.6.7
    cpe:2.3:a:typo3:typo3:7.6.7
  • Typo3 » Typo3 » Version: 7.6.8
    cpe:2.3:a:typo3:typo3:7.6.8
  • Typo3 » Typo3 » Version: 7.6.9
    cpe:2.3:a:typo3:typo3:7.6.9
  • Typo3 » Typo3 » Version: 8.0.0
    cpe:2.3:a:typo3:typo3:8.0.0
  • Typo3 » Typo3 » Version: 8.0.1
    cpe:2.3:a:typo3:typo3:8.0.1
  • Typo3 » Typo3 » Version: 8.0.7
    cpe:2.3:a:typo3:typo3:8.0.7
  • Typo3 » Typo3 » Version: 8.0.8
    cpe:2.3:a:typo3:typo3:8.0.8
  • Typo3 » Typo3 » Version: 8.1.0
    cpe:2.3:a:typo3:typo3:8.1.0
  • Typo3 » Typo3 » Version: 8.1.1
    cpe:2.3:a:typo3:typo3:8.1.1
  • Typo3 » Typo3 » Version: 8.1.2
    cpe:2.3:a:typo3:typo3:8.1.2
  • Typo3 » Typo3 » Version: 8.2.0
    cpe:2.3:a:typo3:typo3:8.2.0
  • Typo3 » Typo3 » Version: 8.2.1
    cpe:2.3:a:typo3:typo3:8.2.1
  • Typo3 » Typo3 » Version: 8.3.0
    cpe:2.3:a:typo3:typo3:8.3.0
  • Typo3 » Typo3 » Version: 8.3.1
    cpe:2.3:a:typo3:typo3:8.3.1
  • Typo3 » Typo3 » Version: 8.4.0
    cpe:2.3:a:typo3:typo3:8.4.0
  • Typo3 » Typo3 » Version: 8.4.1
    cpe:2.3:a:typo3:typo3:8.4.1
  • Typo3 » Typo3 » Version: 8.5.0
    cpe:2.3:a:typo3:typo3:8.5.0
  • Typo3 » Typo3 » Version: 8.5.1
    cpe:2.3:a:typo3:typo3:8.5.1
  • Typo3 » Typo3 » Version: 8.6.0
    cpe:2.3:a:typo3:typo3:8.6.0
  • Typo3 » Typo3 » Version: 8.6.1
    cpe:2.3:a:typo3:typo3:8.6.1
  • Typo3 » Typo3 » Version: 8.7.0
    cpe:2.3:a:typo3:typo3:8.7.0
  • Typo3 » Typo3 » Version: 8.7.1
    cpe:2.3:a:typo3:typo3:8.7.1
  • Typo3 » Typo3 » Version: 8.7.10
    cpe:2.3:a:typo3:typo3:8.7.10
  • Typo3 » Typo3 » Version: 8.7.11
    cpe:2.3:a:typo3:typo3:8.7.11
  • Typo3 » Typo3 » Version: 8.7.12
    cpe:2.3:a:typo3:typo3:8.7.12
  • Typo3 » Typo3 » Version: 8.7.13
    cpe:2.3:a:typo3:typo3:8.7.13
  • Typo3 » Typo3 » Version: 8.7.14
    cpe:2.3:a:typo3:typo3:8.7.14
  • Typo3 » Typo3 » Version: 8.7.15
    cpe:2.3:a:typo3:typo3:8.7.15
  • Typo3 » Typo3 » Version: 8.7.16
    cpe:2.3:a:typo3:typo3:8.7.16
  • Typo3 » Typo3 » Version: 8.7.17
    cpe:2.3:a:typo3:typo3:8.7.17
  • Typo3 » Typo3 » Version: 8.7.18
    cpe:2.3:a:typo3:typo3:8.7.18
  • Typo3 » Typo3 » Version: 8.7.19
    cpe:2.3:a:typo3:typo3:8.7.19
  • Typo3 » Typo3 » Version: 8.7.2
    cpe:2.3:a:typo3:typo3:8.7.2
  • Typo3 » Typo3 » Version: 8.7.20
    cpe:2.3:a:typo3:typo3:8.7.20
  • Typo3 » Typo3 » Version: 8.7.21
    cpe:2.3:a:typo3:typo3:8.7.21
  • Typo3 » Typo3 » Version: 8.7.22
    cpe:2.3:a:typo3:typo3:8.7.22
  • Typo3 » Typo3 » Version: 8.7.23
    cpe:2.3:a:typo3:typo3:8.7.23
  • Typo3 » Typo3 » Version: 8.7.24
    cpe:2.3:a:typo3:typo3:8.7.24
  • Typo3 » Typo3 » Version: 8.7.25
    cpe:2.3:a:typo3:typo3:8.7.25
  • Typo3 » Typo3 » Version: 8.7.26
    cpe:2.3:a:typo3:typo3:8.7.26
  • Typo3 » Typo3 » Version: 8.7.27
    cpe:2.3:a:typo3:typo3:8.7.27
  • Typo3 » Typo3 » Version: 8.7.28
    cpe:2.3:a:typo3:typo3:8.7.28
  • Typo3 » Typo3 » Version: 8.7.29
    cpe:2.3:a:typo3:typo3:8.7.29
  • Typo3 » Typo3 » Version: 8.7.3
    cpe:2.3:a:typo3:typo3:8.7.3
  • Typo3 » Typo3 » Version: 8.7.30
    cpe:2.3:a:typo3:typo3:8.7.30
  • Typo3 » Typo3 » Version: 8.7.31
    cpe:2.3:a:typo3:typo3:8.7.31
  • Typo3 » Typo3 » Version: 8.7.32
    cpe:2.3:a:typo3:typo3:8.7.32
  • Typo3 » Typo3 » Version: 8.7.38
    cpe:2.3:a:typo3:typo3:8.7.38
  • Typo3 » Typo3 » Version: 8.7.39
    cpe:2.3:a:typo3:typo3:8.7.39
  • Typo3 » Typo3 » Version: 8.7.4
    cpe:2.3:a:typo3:typo3:8.7.4
  • Typo3 » Typo3 » Version: 8.7.5
    cpe:2.3:a:typo3:typo3:8.7.5
  • Typo3 » Typo3 » Version: 8.7.6
    cpe:2.3:a:typo3:typo3:8.7.6
  • Typo3 » Typo3 » Version: 8.7.7
    cpe:2.3:a:typo3:typo3:8.7.7
  • Typo3 » Typo3 » Version: 8.7.8
    cpe:2.3:a:typo3:typo3:8.7.8
  • Typo3 » Typo3 » Version: 8.7.9
    cpe:2.3:a:typo3:typo3:8.7.9
  • Typo3 » Typo3 » Version: 9.0.0
    cpe:2.3:a:typo3:typo3:9.0.0
  • Typo3 » Typo3 » Version: 9.0.3
    cpe:2.3:a:typo3:typo3:9.0.3
  • Typo3 » Typo3 » Version: 9.0.4
    cpe:2.3:a:typo3:typo3:9.0.4
  • Typo3 » Typo3 » Version: 9.1.0
    cpe:2.3:a:typo3:typo3:9.1.0
  • Typo3 » Typo3 » Version: 9.1.2
    cpe:2.3:a:typo3:typo3:9.1.2
  • Typo3 » Typo3 » Version: 9.1.3
    cpe:2.3:a:typo3:typo3:9.1.3
  • Typo3 » Typo3 » Version: 9.2.0
    cpe:2.3:a:typo3:typo3:9.2.0
  • Typo3 » Typo3 » Version: 9.2.1
    cpe:2.3:a:typo3:typo3:9.2.1
  • Typo3 » Typo3 » Version: 9.3.0
    cpe:2.3:a:typo3:typo3:9.3.0
  • Typo3 » Typo3 » Version: 9.3.1
    cpe:2.3:a:typo3:typo3:9.3.1
  • Typo3 » Typo3 » Version: 9.3.2
    cpe:2.3:a:typo3:typo3:9.3.2
  • Typo3 » Typo3 » Version: 9.3.3
    cpe:2.3:a:typo3:typo3:9.3.3
  • Typo3 » Typo3 » Version: 9.4.0
    cpe:2.3:a:typo3:typo3:9.4.0
  • Typo3 » Typo3 » Version: 9.5.0
    cpe:2.3:a:typo3:typo3:9.5.0
  • Typo3 » Typo3 » Version: 9.5.1
    cpe:2.3:a:typo3:typo3:9.5.1
  • Typo3 » Typo3 » Version: 9.5.10
    cpe:2.3:a:typo3:typo3:9.5.10
  • Typo3 » Typo3 » Version: 9.5.11
    cpe:2.3:a:typo3:typo3:9.5.11
  • Typo3 » Typo3 » Version: 9.5.12
    cpe:2.3:a:typo3:typo3:9.5.12
  • Typo3 » Typo3 » Version: 9.5.13
    cpe:2.3:a:typo3:typo3:9.5.13
  • Typo3 » Typo3 » Version: 9.5.14
    cpe:2.3:a:typo3:typo3:9.5.14
  • Typo3 » Typo3 » Version: 9.5.15
    cpe:2.3:a:typo3:typo3:9.5.15
  • Typo3 » Typo3 » Version: 9.5.16
    cpe:2.3:a:typo3:typo3:9.5.16
  • Typo3 » Typo3 » Version: 9.5.17
    cpe:2.3:a:typo3:typo3:9.5.17
  • Typo3 » Typo3 » Version: 9.5.18
    cpe:2.3:a:typo3:typo3:9.5.18
  • Typo3 » Typo3 » Version: 9.5.19
    cpe:2.3:a:typo3:typo3:9.5.19
  • Typo3 » Typo3 » Version: 9.5.2
    cpe:2.3:a:typo3:typo3:9.5.2
  • Typo3 » Typo3 » Version: 9.5.20
    cpe:2.3:a:typo3:typo3:9.5.20
  • Typo3 » Typo3 » Version: 9.5.21
    cpe:2.3:a:typo3:typo3:9.5.21
  • Typo3 » Typo3 » Version: 9.5.22
    cpe:2.3:a:typo3:typo3:9.5.22
  • Typo3 » Typo3 » Version: 9.5.23
    cpe:2.3:a:typo3:typo3:9.5.23
  • Typo3 » Typo3 » Version: 9.5.24
    cpe:2.3:a:typo3:typo3:9.5.24
  • Typo3 » Typo3 » Version: 9.5.3
    cpe:2.3:a:typo3:typo3:9.5.3
  • Typo3 » Typo3 » Version: 9.5.4
    cpe:2.3:a:typo3:typo3:9.5.4
  • Typo3 » Typo3 » Version: 9.5.5
    cpe:2.3:a:typo3:typo3:9.5.5
  • Typo3 » Typo3 » Version: 9.5.6
    cpe:2.3:a:typo3:typo3:9.5.6
  • Typo3 » Typo3 » Version: 9.5.7
    cpe:2.3:a:typo3:typo3:9.5.7
  • Typo3 » Typo3 » Version: 9.5.8
    cpe:2.3:a:typo3:typo3:9.5.8
  • Typo3 » Typo3 » Version: 9.5.9
    cpe:2.3:a:typo3:typo3:9.5.9


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