CVE-2020-25812

published 2020-09-27

CVE-2020-25812: An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an…

Priority P4 22 medium 6.1 CVSS 3.1

AV N AC L PR N UI R S C C L I L A N

An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
debian	mediawiki	< mediawiki 1:1.35.0-1 (bookworm)	mediawiki 1:1.35.0-1 (bookworm)
fedoraproject	fedora	—	—
mediawiki	core	>= 1.34.0 < 1.34.3	1.34.3
mediawiki	core	>= 1.35.0-rc.0 < 1.35.0	1.35.0
mediawiki	mediawiki	>= 0 < 1:1.35.0-1	1:1.35.0-1
mediawiki	mediawiki	>= 0 < 1:1.35.0-1	1:1.35.0-1
mediawiki	mediawiki	>= 0 < 1:1.35.0-1	1:1.35.0-1
mediawiki	mediawiki	>= 0 < 1:1.35.0-1	1:1.35.0-1
mediawiki	mediawiki	>= 1.34.0 < 1.34.4	1.34.4

CVSS provenance

nvd v3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvd v2.0 4.3 MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N

osv 6.1 MEDIUM

vendor_debian 6.1 MEDIUM

vendor_redhat 6.1 MEDIUM

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CWE-79