Cross-Site Scripting Vulnerability in Wikimedia Foundation Mediawiki - FlaggedRevs Extension
CVE-2025-53491

5.4MEDIUM

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki - Flaggedrevs Extension
Vendor
CVE Published:
7 July 2025

What is CVE-2025-53491?

The Mediawiki - FlaggedRevs Extension from Wikimedia Foundation contains a vulnerability that allows for Cross-Site Scripting (XSS). This occurs due to improper neutralization of input during web page generation, which could allow attackers to inject malicious scripts into web pages viewed by other users. The issue affects all versions of the FlaggedRevs Extension prior to 1.43.2, making it critical for users to upgrade to the latest version to mitigate potential exploitation risks.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Mediawiki - FlaggedRevs Extension 1.43.x < 1.43.2

References

https://phabricator.wikimedia.org/T394397
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Fla...

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dreamy_Jazz
JSON
.