CVE-2026-58030

MEDIUM

Wikimedia Foundation SyntaxHighlight_GeSHi - SyntaxHighlight Stored XSS via Unsanitized 'linelinks' Attribute

Title source: rule

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlight_GeSHi. This vulnerability is associated with program files includes/SyntaxHighlight.Php. This issue affects SyntaxHighlight_GeSHi: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

References (1)

Core 1

Core References

https://phabricator.wikimedia.org/T427167

Scores

CVSS v3 6.1

EPSS 0.0027

EPSS Percentile 18.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (3)

mediawiki/mediawiki 1.46.0 rc0

mediawiki/mediawiki 1.43.0 - 1.43.9

Wikimedia Foundation/SyntaxHighlight_GeSHi < 1.46.0, 1.45.4, 1.44.6, 1.43.9

Published Jul 01, 2026

Tracked Since Jul 01, 2026