Information Exposure in Wikimedia Foundation MediaWiki
CVE-2026-34092

2.1LOW

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki
Vendor
CVE Published:
11 May 2026

What is CVE-2026-34092?

A vulnerability in Wikimedia Foundation's MediaWiki can lead to unauthorized exposure of sensitive information. This issue is linked to the program files found in includes/Skin/Skin.php, which may allow attackers to access confidential data if the appropriate security measures are not in place. Affected versions of MediaWiki include those prior to 1.43.7 and the specific versions 1.44.4 and 1.45.2. Users are strongly advised to update to the latest versions to mitigate the risk of exploitation.

Affected Version(s)

MediaWiki * < 1.43.7, 1.44.4, 1.45.2

References

https://phabricator.wikimedia.org/T384147

CVSS V4

Score:
2.1
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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