CVE-2022-34911
MEDIUMMediaWiki < 1.35.7, 1.36.x-1.37.x < 1.37.3, 1.38.x < 1.38.1 - Cross-Site Scripting via Username in Account Creation
Title source: llmDescription
An issue was discovered in MediaWiki before 1.35.7, 1.36.x and 1.37.x before 1.37.3, and 1.38.x before 1.38.1. XSS can occur in configurations that allow a JavaScript payload in a username. After account creation, when it sets the page title to "Welcome" followed by the username, the username is not escaped: SpecialCreateAccount::successfulAction() calls ::showSuccessPage() with a message as second parameter, and OutputPage::setPageTitle() uses text().
References (6)
Core 6
Core References
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/09/msg00027.html
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5246
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202305-24
Issue Tracking, Vendor Advisory
https://phabricator.wikimedia.org/T308471
Scores
CVSS v3
6.1
EPSS
0.0115
EPSS Percentile
78.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (4)
fedoraproject/fedora
36
fedoraproject/fedora
37
mediawiki/mediawiki
1.38.0 (3 CPE variants)
mediawiki/mediawiki
< 1.35.7
Published
Jul 02, 2022
Tracked Since
Feb 18, 2026