Vulnerability Details CVE-2021-44912
In XE 1.116, when uploading the Normal button, there is no restriction on the file suffix, which leads to any file uploading to the files directory. Since .htaccess only restricts the PHP type, uploading HTML-type files leads to stored XSS vulnerabilities. If the .htaccess configuration is improper, for example before the XE 1.11.2 version, you can upload the PHP type file to GETSHELL.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.3%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
Products affected by CVE-2021-44912
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cpe:2.3:a:xpressengine:xpressengine:-
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cpe:2.3:a:xpressengine:xpressengine:1.11.0
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cpe:2.3:a:xpressengine:xpressengine:1.11.1
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cpe:2.3:a:xpressengine:xpressengine:1.11.2
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cpe:2.3:a:xpressengine:xpressengine:1.11.3
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cpe:2.3:a:xpressengine:xpressengine:1.11.4
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cpe:2.3:a:xpressengine:xpressengine:1.11.5
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cpe:2.3:a:xpressengine:xpressengine:1.7.10
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cpe:2.3:a:xpressengine:xpressengine:1.7.11
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cpe:2.3:a:xpressengine:xpressengine:1.7.12
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cpe:2.3:a:xpressengine:xpressengine:1.7.13
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cpe:2.3:a:xpressengine:xpressengine:1.7.3.6
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cpe:2.3:a:xpressengine:xpressengine:1.7.3.7
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cpe:2.3:a:xpressengine:xpressengine:1.7.3.8
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cpe:2.3:a:xpressengine:xpressengine:1.7.4
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cpe:2.3:a:xpressengine:xpressengine:1.7.4.1
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cpe:2.3:a:xpressengine:xpressengine:1.7.4.2
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cpe:2.3:a:xpressengine:xpressengine:1.7.5
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.1
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.2
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.3
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.4
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.5
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.6
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cpe:2.3:a:xpressengine:xpressengine:1.7.5.7
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cpe:2.3:a:xpressengine:xpressengine:1.7.6
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cpe:2.3:a:xpressengine:xpressengine:1.7.7
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cpe:2.3:a:xpressengine:xpressengine:1.7.7.1
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cpe:2.3:a:xpressengine:xpressengine:1.7.7.2
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cpe:2.3:a:xpressengine:xpressengine:1.7.8
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cpe:2.3:a:xpressengine:xpressengine:1.7.9
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cpe:2.3:a:xpressengine:xpressengine:1.8.0
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cpe:2.3:a:xpressengine:xpressengine:1.8.1
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cpe:2.3:a:xpressengine:xpressengine:1.8.10
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cpe:2.3:a:xpressengine:xpressengine:1.8.11
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cpe:2.3:a:xpressengine:xpressengine:1.8.12
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cpe:2.3:a:xpressengine:xpressengine:1.8.13
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cpe:2.3:a:xpressengine:xpressengine:1.8.14
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cpe:2.3:a:xpressengine:xpressengine:1.8.15
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cpe:2.3:a:xpressengine:xpressengine:1.8.16
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cpe:2.3:a:xpressengine:xpressengine:1.8.17
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cpe:2.3:a:xpressengine:xpressengine:1.8.18
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cpe:2.3:a:xpressengine:xpressengine:1.8.19
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cpe:2.3:a:xpressengine:xpressengine:1.8.2
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cpe:2.3:a:xpressengine:xpressengine:1.8.20
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cpe:2.3:a:xpressengine:xpressengine:1.8.21
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cpe:2.3:a:xpressengine:xpressengine:1.8.22
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cpe:2.3:a:xpressengine:xpressengine:1.8.23
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cpe:2.3:a:xpressengine:xpressengine:1.8.24
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cpe:2.3:a:xpressengine:xpressengine:1.8.25
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cpe:2.3:a:xpressengine:xpressengine:1.8.26
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cpe:2.3:a:xpressengine:xpressengine:1.8.27
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cpe:2.3:a:xpressengine:xpressengine:1.8.28
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cpe:2.3:a:xpressengine:xpressengine:1.8.29
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cpe:2.3:a:xpressengine:xpressengine:1.8.3
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cpe:2.3:a:xpressengine:xpressengine:1.8.30
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cpe:2.3:a:xpressengine:xpressengine:1.8.31
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cpe:2.3:a:xpressengine:xpressengine:1.8.32
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cpe:2.3:a:xpressengine:xpressengine:1.8.33
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cpe:2.3:a:xpressengine:xpressengine:1.8.34
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cpe:2.3:a:xpressengine:xpressengine:1.8.35
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cpe:2.3:a:xpressengine:xpressengine:1.8.36
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cpe:2.3:a:xpressengine:xpressengine:1.8.37
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cpe:2.3:a:xpressengine:xpressengine:1.8.38
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cpe:2.3:a:xpressengine:xpressengine:1.8.39
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cpe:2.3:a:xpressengine:xpressengine:1.8.4
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cpe:2.3:a:xpressengine:xpressengine:1.8.40
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cpe:2.3:a:xpressengine:xpressengine:1.8.41
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cpe:2.3:a:xpressengine:xpressengine:1.8.42
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cpe:2.3:a:xpressengine:xpressengine:1.8.43
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cpe:2.3:a:xpressengine:xpressengine:1.8.44
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cpe:2.3:a:xpressengine:xpressengine:1.8.45
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cpe:2.3:a:xpressengine:xpressengine:1.8.46
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cpe:2.3:a:xpressengine:xpressengine:1.8.5
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cpe:2.3:a:xpressengine:xpressengine:1.8.6
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cpe:2.3:a:xpressengine:xpressengine:1.8.7
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cpe:2.3:a:xpressengine:xpressengine:1.8.8
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cpe:2.3:a:xpressengine:xpressengine:1.8.9
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cpe:2.3:a:xpressengine:xpressengine:1.9.0
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cpe:2.3:a:xpressengine:xpressengine:1.9.1
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cpe:2.3:a:xpressengine:xpressengine:1.9.2
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cpe:2.3:a:xpressengine:xpressengine:1.9.3
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cpe:2.3:a:xpressengine:xpressengine:1.9.4
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cpe:2.3:a:xpressengine:xpressengine:1.9.5
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cpe:2.3:a:xpressengine:xpressengine:1.9.6
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cpe:2.3:a:xpressengine:xpressengine:1.9.7
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cpe:2.3:a:xpressengine:xpressengine:1.9.8