CVE-2025-53500

Stored XSS in MassEditRegex

Published Jul 3, 2025 CVSS 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-19887 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.
History
Type Values Removed Values Added
First Time appeared Malvineous
Malvineous masseditregex
Mediawiki
Mediawiki mediawiki
CPEs cpe:2.3:a:malvineous:masseditregex:-:*:*:*:*:mediawiki:*:*
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Vendors & Products Malvineous
Malvineous masseditregex
Mediawiki
Mediawiki mediawiki
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Stored XSS in MassEditRegex
Weaknesses CWE-79
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
wikimedia-foundation
Published
Updated
Jul 10, 2025, 11:29 PM
Reserved
Jun 30, 2025, 3:36 PM
Status
Analyzed
Published
Jul 3, 2025, 5:15 PM
Modified
Jun 17, 2026, 9:38 AM