Paper/Archive/CVE-2026-58025

CVE-2026-58025

Wikimedia Foundation MediaWiki — Remote Code Execution via Unsafe Deserialization in LogItem Import

CVSS 9.8 (NVD)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 43.0.430 × 208.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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

ProductAffectedFixed inSource

MediaWiki< 1.46.0, 1.45.4, 1.44.6, 1.43.91.46.0, 1.45.4, 1.44.6, 1.43.9CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

wikimedia-foundation (CNA)5.9CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refphabricator.wikimedia.org/T422244