Description

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.

Remediation

References

CVE-2021-30157

Related Vulnerabilities

Oracle Database Server Other Vulnerability (CVE-2005-0701)

WordPress Plugin Helpful Cross-Site Scripting (4.4.58)

IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-20340)

Dolibarr Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2020-14209)

Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2011-4287)

Severity

Medium

Classification

CVE-2021-30157 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities