Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Metrics
CVSS 3.1 5.6/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Wikimedia Foundation | Mediawiki - MassEditRegex Extension | >= 1.39.x, < 1.39.13; >= 1.42.x, < 1.42.7; >= 1.43.x, < 1.43.2 |
References
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassEditRegex/+/1163878/Patch
- https://phabricator.wikimedia.org/T397334Exploit, Issue Tracking, Patch
Timeline
- Published
- Jul 3, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed