CVE-2026-34092
Received
Received - Intake
Exposure of Sensitive Information in MediaWiki
Publication date: 2026-05-11
Last updated on: 2026-05-11
Assigner: wikimedia-foundation
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wikimedia | mediawiki | From *|end_excluding=1.43.7 (inc) |
| wikimedia | mediawiki | 1.44.4 |
| wikimedia | mediawiki | 1.45.2 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-200 | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an Exposure of Sensitive Information to an Unauthorized Actor in the Wikimedia Foundation's MediaWiki software. It is related to the program files includes/Skin/Skin.Php and affects versions of MediaWiki before 1.43.7, 1.44.4, and 1.45.2.
How can this vulnerability impact me? :
The vulnerability could allow unauthorized actors to access sensitive information that should be protected. This exposure may lead to information disclosure risks, potentially compromising privacy or security depending on the nature of the sensitive data involved.
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