CVE-2026-34093 LOW

CVE-2026-34093: Special:UserRights allows viewing user rights from private wiki

Vendor Wikimedia Foundation

Product MediaWiki

Weakness CWE-200 · Info exposure

Published May 11, 2026

Last update May 11, 2026

View on NVD All CVEs

CVSS base score

1.1/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction —

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/R:A

What the vulnerability does

01Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Specials/SpecialUserRights.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

Key dates

02Disclosure timeline

May 11, 2026 CVE published

May 11, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-34093 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/200.html

Related vulnerabilities

04Related CVE

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