CVE-2024-34507

HIGH7.4EPSS 0.44%

Published: 5/5/2024Modified: 4/28/2026

Description

An issue was discovered in includes/CommentFormatter/CommentParser.php in MediaWiki before 1.39.7, 1.40.x before 1.40.3, and 1.41.x before 1.41.1. XSS can occur because of mishandling of the 0x1b character, as demonstrated by Special:RecentChanges#%1b0000000.

Affected packages (2)

Bitnami/mediawikifrom 0, < 1.41.1
Debian/mediawikifrom 0, < 1:1.39.7-1~deb12u1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References (5)

ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2024-34507
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
WEBhttps://nvd.nist.gov/vuln/detail/CVE-2024-34507
WEBhttps://phabricator.wikimedia.org/T355538