CVE-2023-22910

MEDIUM

MediaWiki < 1.35.9, 1.36.x-1.38.x < 1.38.5, 1.39.x < 1.39.1 - Cross-Site Scripting via Wikibase Date Formatting

Title source: llm

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. There is XSS in Wikibase date formatting via wikibase-time-precision-* fields. This allows JavaScript execution by staff/admin users who do not intentionally have the editsitejs capability.

References (1)

Core 1

Core References

Exploit, Issue Tracking, Patch, Vendor Advisory

https://phabricator.wikimedia.org/T323592

Scores

CVSS v3 5.4

EPSS 0.0074

EPSS Percentile 73.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (2)

mediawiki/mediawiki 1.39.0 (3 CPE variants)

mediawiki/mediawiki < 1.35.9

Published Jan 20, 2023

Tracked Since Feb 18, 2026