Code Injection Vulnerability in MediaWiki LanguageSelector Extension by Wikimedia Foundation
CVE-2025-62697

8.8HIGH

Key Information:

Vendor

The Wikimedia Foundation

Status
Mediawiki - Languageselector Extension
Vendor
CVE Published:
20 October 2025

What is CVE-2025-62697?

A vulnerability exists in the Wikimedia Foundation's MediaWiki - LanguageSelector Extension that allows for malicious code injection due to improper neutralization of special elements. This can enable attackers to execute arbitrary code within the application, affecting the integrity and security of the application environment. The issue is present in all versions prior to 1.39, making prompt updates essential to mitigate risks associated with this security flaw.

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 - LanguageSelector Extension master < 1.39

References

https://gerrit.wikimedia.org/r/q/I338288e756de4e58a3f1f02...
https://phabricator.wikimedia.org/T399724

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

SomeRandomDeveloper
JSON
.