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 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. 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 |