CVE-2022-34911
6.1
MEDIUM
CVSS 3.1
EPSS 1.1%
Description
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().
How to fix CVE-2022-34911
To remediate CVE-2022-34911, upgrade the affected package to a fixed version below.
- —upgrade to 1.35.7 or later
- —upgrade to 1:1.35.8-1~deb11u1 or later
Is CVE-2022-34911 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.35.7, >= 1.36.0, < 1.37.3, >= 1.38.0, < 1.38.1
- from 0, < 1:1.35.8-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |