CVE-2026-34092 Details
Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Skin/Skin.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.
A vulnerability allowing the exposure of sensitive information to unauthorized actors has been identified in Wikimedia Foundation MediaWiki. This issue arises in the program file includes/Skin/Skin.php and affects MediaWiki versions prior to 1.43.7, 1.44.4, and 1.45.2.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://phabricator.wikimedia.org/T384147 | wikimedia-foundation | Issue TrackingVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | wikimedia-foundation |
Affected Products
| Product | Versions |
|---|---|
| mediawiki mediawiki | < 1.43.7 >= 1.44.0, < 1.44.4 >= 1.45.0, < 1.45.2 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | wikimedia-foundation |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 14, 2026 | Initial Analysis | [email protected] |
| May 11, 2026 | New CVE Received | wikimedia-foundation |