CVE-2023-37255
6.1
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In Special:CheckUser, a check of the "get edits" type is vulnerable to HTML injection through the User-Agent HTTP request header.
How to fix CVE-2023-37255
To remediate CVE-2023-37255, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.39.4 or later
Is CVE-2023-37255 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.39.4
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 |