CVE-2026-58025
criticalDeserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.
Vendor / product: Mediawiki — mediawiki
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.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-07-01 16:16
Modified: 2026-10-25 17:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
mediawiki / mediawiki ≥1.43.0 <1.43.9, ≥1.44.0 <1.44.6, ≥1.45.0 <1.45.4, 1.46.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://phabricator.wikimedia.org/T422244 c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗