cbcvebase.
CVE-2020-25828
published 2020-09-27

CVE-2020-25828: An issue was discovered in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. The non-jqueryMsg version of mw.message().parse() doesn't escape…

PriorityP425medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EPSS
1.09%
61.9th percentile
An issue was discovered in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. The non-jqueryMsg version of mw.message().parse() doesn't escape HTML. This affects both message contents (which are generally safe) and the parameters (which can be based on user input). (When jqueryMsg is loaded, it correctly accepts only whitelisted tags in message contents, and escapes all parameters. Situations with an unloaded jqueryMsg are rare in practice, but can for example occur for Special:SpecialPages on a wiki with no extensions installed.)

Affected

11 ranges
VendorProductVersion rangeFixed in
debianmediawiki< mediawiki 1:1.35.0-1 (bookworm)mediawiki 1:1.35.0-1 (bookworm)
fedoraprojectfedora——
mediawikicore>= 1.31.0 < 1.31.91.31.9
mediawikicore>= 1.32.0 < 1.34.31.34.3
mediawikicore>= 1.35.0-rc.0 < 1.35.01.35.0
mediawikimediawiki——
mediawikimediawiki>= 0 < 1:1.35.0-11:1.35.0-1
mediawikimediawiki>= 0 < 1:1.35.0-11:1.35.0-1
mediawikimediawiki>= 0 < 1:1.35.0-11:1.35.0-1
mediawikimediawiki>= 0 < 1:1.35.0-11:1.35.0-1
mediawikimediawiki>= 1.32.0 < 1.34.41.34.4

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv6.1MEDIUM
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
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