MediaWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-30154)

Description

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

Remediation

References

CVE-2021-30154

Related Vulnerabilities

phpMyFAQ Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2022-4408)

WordPress Plugin Image Gallery-Responsive Photo Gallery Cross-Site Scripting (2.0.5)

PmWiki Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2011-4453)

MediaWiki Exposure of Resource to Wrong Sphere Vulnerability (CVE-2021-30153)

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Severity

Medium

Classification

CVE-2021-30154 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N