CVE-2024-34500
MediaWiki UnlinkedWikibase Cross-site Scripting vulnerability
6.1
MEDIUM
CVSS 3.1
EPSS 0.30%
Description
An issue was discovered in the UnlinkedWikibase extension in MediaWiki before 1.42.0. XSS can occur through an interface message. Error messages (in the $err var) are not escaped before being passed to Html::rawElement() in the getError() function in the Hooks class.
How to fix CVE-2024-34500
To remediate CVE-2024-34500, upgrade the affected package to a fixed version below.
- —upgrade to 1.41.1 or later
- —upgrade to 1.42.0 or later
Is CVE-2024-34500 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.41.1
- from 0, < 1.42.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| 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 |