Mediawiki: Security Vulnerabilities
An issue was discovered in MediaWiki through 1.38.1. The lemma length of a Wikibase lexeme is currently capped at a thousand characters. Unfortunately, this length is not validated, allowing much larger lexemes to be created, which introduces various denial-of-service attack vectors within the Wikibase and WikibaseLexeme extensions. This is related to Special:NewLexeme and Special:NewProperty.
CVSS Score
7.5
EPSS Score
0.005
Published
2022-06-28
The RSS extension before 2022-04-29 for MediaWiki allows XSS via an rss element (if the feed is in $wgRSSUrlWhitelist and $wgRSSAllowLinkTag is true).
CVSS Score
6.1
EPSS Score
0.002
Published
2022-05-02
An issue was discovered in MediaWiki through 1.37.2. The SecurePoll extension allows a leak because sorting by timestamp is supported,
CVSS Score
7.5
EPSS Score
0.004
Published
2022-04-30
The Private Domains extension for MediaWiki through 1.37.2 (before 1ad65d4c1c199b375ea80988d99ab51ae068f766) allows CSRF for editing pages that store the extension's configuration. The attacker must trigger a POST request to Special:PrivateDomains.
CVSS Score
4.3
EPSS Score
0.001
Published
2022-04-29
The SemanticDrilldown extension for MediaWiki through 1.37.2 (before e688bdba6434591b5dff689a45e4d53459954773) allows SQL injection with certain '-' and '_' constraints.
CVSS Score
9.8
EPSS Score
0.009
Published
2022-04-29
The FanBoxes extension for MediaWiki through 1.37.2 (before 027ffb0b9d6fe0d823810cf03f5b562a212162d4) allows Special:UserBoxes CSRF.
CVSS Score
4.3
EPSS Score
0.001
Published
2022-04-29
The admin API module in the QuizGame extension for MediaWiki through 1.37.2 (before 665e33a68f6fa1167df99c0aa18ed0157cdf9f66) omits a check for the quizadmin user.
CVSS Score
9.8
EPSS Score
0.004
Published
2022-04-29
The Nimbus skin for MediaWiki through 1.37.2 (before 6f9c8fb868345701d9544a54d9752515aace39df) allows XSS in Advertise link messages.
CVSS Score
6.1
EPSS Score
0.004
Published
2022-04-29
The CreateRedirect extension before 2022-04-14 for MediaWiki does not properly check whether the user has permissions to edit the target page. This could lead to an unauthorised (or blocked) user being able to edit a page.
CVSS Score
7.5
EPSS Score
0.002
Published
2022-04-21
An issue was discovered in MediaWiki through 1.37.1. The CentralAuth extension mishandles a ttl issue for groups expiring in the future.
CVSS Score
9.8
EPSS Score
0.003
Published
2022-03-30