Candidate: CVE-2020-25814
PublicDate: 2020-09-27 21:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25814
 https://lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
 https://phabricator.wikimedia.org/T86738
 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
 https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediawiki.jqueryMsg
Description:
 In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS
 related to jQuery can occur. The attacker creates a message with
 [javascript:payload xss] and turns it into a jQuery object with
 mw.message().parse(). The expected result is that the jQuery object does
 not contain an <a> tag (or it does not have a href attribute, or it's
 empty, etc.). The actual result is that the object contains an <a href
 ="javascript... that executes when clicked.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N [6.1 MEDIUM]


Patches_mediawiki:
upstream_mediawiki: released (1:1.35.0-1)
precise/esm_mediawiki: DNE
trusty_mediawiki: ignored (out of standard support)
trusty/esm_mediawiki: DNE
xenial_mediawiki: DNE
bionic_mediawiki: needs-triage
focal_mediawiki: needs-triage
groovy_mediawiki: not-affected (1:1.35.0-1)
hirsute_mediawiki: not-affected (1:1.35.0-1)
impish_mediawiki: not-affected (1:1.35.0-1)
jammy_mediawiki: not-affected (1:1.35.0-1)
devel_mediawiki: not-affected (1:1.35.0-1)