CVE-2023-22909

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-10 · updated 2026-06-17

Description

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. SpecialMobileHistory allows remote attackers to cause a denial of service because database queries are slow.

Affected products

Fedoraproject Fedora: 37
Wikimedia Foundation MediaWiki: before 1.35.9; from 1.36.0 before 1.38.5; 1.39.0, 1.39.0-rc0, 1.39.0-rc1 — fixed in 1.35.9, 1.38.5

How to fix

Upgrade to a fixed version: Wikimedia Foundation MediaWiki 1.35.9, 1.38.5. Check the vendor advisory for mitigations.

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A/
https://phabricator.wikimedia.org/T320987
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A/
https://phabricator.wikimedia.org/T320987

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