UBUNTU-CVE-2021-30157

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-30157
Published: 06 Apr 2021, 07:15
Last modified:27 May 2026, 10:16

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6.1 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Apr 2021, 07:15
Published
Vulnerability first disclosed
27 May 2026, 10:16
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Systems

  • ubuntu•mediawiki

    all | all | all | all | all

References (4)