CVE-2026-58025

Remote Code Execution via Unsafe Deserialization in LogItem Import

State: Published
Severity: 5.9 Medium
Published: Jul 1, 2026
Updated: Jul 1, 2026
Reserved: Jun 27, 2026

Description

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.

This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Scores

CVSS	Score	Vector	Source
4.0	5.9 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L	wikimedia-foundation

Weaknesses

CWE-502 Deserialization of untrusted data
CWE-94

Affected Products

Product	Versions
MediaWikiWikimedia Foundation	before 1.46.0, 1.45.4, 1.44.6, 1.43.9Affected

References

https://phabricator.wikimedia.org/T422244

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