CVE-2021-45472
6.1
MEDIUM
CVSS 3.1
EPSS 0.26%
Description
In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.
How to fix CVE-2021-45472
To remediate CVE-2021-45472, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.37.1 or later
Is CVE-2021-45472 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.37.1
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 |