CVE-2025-53500

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.

Score

CVSS 3.1 5.6 Medium

Status

Analyzed - c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published

2025-07-03

Last modified

2025-07-10

Weaknesses

CWE-79

Affected products

• Masseditregex (Malvineous)
• Mediawiki - Masseditregex Extension (Wikimedia Foundation)

References

• https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassEditRegex/+/1163878/
• https://phabricator.wikimedia.org/T397334