CVE-2026-58025: Remote Code Execution via Unsafe Deserialization in LogItem Import

Published Jul 1, 2026
·
Updated

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.

Affected Software

5 affected components
Wikimedia Foundation MediaWiki>1.0.0<=1.46.0
MediaWiki MediaWiki>=1.43.0<1.43.9
MediaWiki MediaWiki>=1.44.0<1.44.6
MediaWiki MediaWiki>=1.45.0<1.45.4
MediaWiki MediaWiki=1.46.0-rc0

Event History

Jul 1, 2026
CVE Published
via MITRE·03:23 PM
Data Sourced
via MITRE·03:23 PM
DescriptionWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-58025?

CVE-2026-58025 has a medium severity rating of 5.9.

2

What type of vulnerability is CVE-2026-58025?

CVE-2026-58025 is a remote code execution vulnerability caused by unsafe deserialization.

3

How can I mitigate CVE-2026-58025?

To mitigate CVE-2026-58025, upgrade to MediaWiki version 1.46.0 or later.

4

What products are affected by CVE-2026-58025?

CVE-2026-58025 affects versions of MediaWiki prior to 1.46.0 and 1.45.4.

5

What components of MediaWiki are involved in CVE-2026-58025?

CVE-2026-58025 involves the program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, and includes/Logging/LogEntryBase.Php.

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