CVE-2026-34088
Exposure of Sensitive Information in MediaWiki
Publication date: 2026-05-11
Last updated on: 2026-05-11
Assigner: wikimedia-foundation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wikimedia | mediawiki | to 1.43.7 (exc) |
| wikimedia | mediawiki | 1.44.4 |
| wikimedia | mediawiki | 1.45.2 |
Helpful Resources
Exploitability
| 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 Wikimedia Foundation's MediaWiki software. It affects versions 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, potentially leading to information disclosure.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability involves exposure of sensitive information to an unauthorized actor in Wikimedia Foundation MediaWiki.
Such exposure of sensitive information could potentially impact compliance with data protection regulations like GDPR and HIPAA, which require protection of personal and sensitive data from unauthorized access.
However, specific details on how this vulnerability affects compliance with these standards are not provided in the available information.