[MediaWiki-l] MediaWiki Extensions and Skins Security Release Supplement

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[MediaWiki-l] MediaWiki Extensions and Skins Security Release Supplement

Scott Bassett
Greetings-

With the security/maintenance release of MediaWiki 1.31.6/1.32.6/1.33.2
[0], we would also like to provide this supplementary announcement of
MediaWiki extensions and skins with now-public Phabricator tasks, security
patches and backports [1]:

== CheckUser ==
+ (T234862, CVE-2019-18611) - Do not show oversighted edit summaries in
CheckUser API
<https://gerrit.wikimedia.org/r/q/Ie0aa0df2b3f03d8b910733f1b5e600a0dc978765>

== AbuseFilter ==
+ (T104807, CVE-2019-18612) - Older hidden versions of a currently-public
AbuseFilter are exposed via diffs
<https://gerrit.wikimedia.org/r/q/Ie23e8234ae550273bf3f6f9c5ac45b7fc54eec2a>

+ (T237887, CVE-2019-18987) - Old public versions of private filters are
publicly viewable
<https://gerrit.wikimedia.org/r/q/Ic12790bd33982473f77551bde9599ed083a3e1f1>

== VisualEditor ==
+ (T239209, CVE-2019-19708) - XSS in Visual Editor via Copy&Paste
<https://gerrit.wikimedia.org/r/q/I1f99458fd2c4f6b2460dfe7a93b330ddee4400b6>

== MinervaNeue skin ==
+ (T240487, CVE requested) - XSS in MinervaNeue skin
<https://gerrit.wikimedia.org/r/q/Ida471291f1698387a26736931ab17e6899e05b51>

== LDAPAuthentication2 ==
+ (T240338, No CVE requested) - LDAPAuthentication2 allows login with
invalid password
<https://gerrit.wikimedia.org/r/q/I7b125ab468ebc914b8a1c67ed0c03e3c2a20c6cd>

The Wikimedia Security Team recommends updating these extensions and skins
to the current master branch or relevant, supported release branch [2] as
soon as possible. Some of the referenced Phabricator tasks above _may_
still be private. Unfortunately, when security issues are reported,
sometimes sensitive information is exposed and since Phabricator is
historical, we cannot make these tasks public without exposing this
sensitive information. If you have any additional questions or concerns
regarding this update, please feel free to contact [hidden email]
or file a security task within Phabricator [3].

[0]
https://lists.wikimedia.org/pipermail/wikitech-l/2019-December/092886.html
[1] https://phabricator.wikimedia.org/T234983
[2] https://www.mediawiki.org/wiki/Version_lifecycle
[3] https://www.mediawiki.org/wiki/Reporting_security_bugs

--
Scott Bassett
[hidden email]
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