VulnerabilityAnalyzed
CVE-2026-58025
Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.
MEDIUM 5.9EPSS 0.50%
Does this matter?
Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.9 MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.50% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94, CWE-502
- Affected
- mediawiki/mediawiki
- Source
- c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
References
- https://phabricator.wikimedia.org/T422244Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.