CVE-2024-34507: 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…

PriorityP432high7.4CVSS 3.1

AVNACLPRNUIRSCCHINAN

EPSS

0.67%

48.0th percentile

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

8 ranges

Vendor	Product	Version range	Fixed in
debian	mediawiki	< mediawiki 1:1.39.7-1~deb12u1 (bookworm)	mediawiki 1:1.39.7-1~deb12u1 (bookworm)
fedoraproject	fedora	—	—
mediawiki	mediawiki	< 1.39.7	1.39.7
mediawiki	mediawiki	>= 0 < 1:1.39.7-1~deb12u1	1:1.39.7-1~deb12u1
mediawiki	mediawiki	>= 0 < 1:1.39.7-1	1:1.39.7-1
mediawiki	mediawiki	>= 0 < 1:1.39.7-1	1:1.39.7-1
mediawiki	mediawiki	>= 1.40.0 < 1.40.3	1.40.3
mediawiki	mediawiki	>= 1.41.0 < 1.41.1	1.41.1

CVSS provenance

nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

osv7.4HIGH

vendor_debian7.4HIGH

vendor_redhat7.4HIGH

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