CVE-2021-31545
5.3
MEDIUM
CVSS 3.1
EPSS 0.20%
Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The page_recent_contributors leaked the existence of certain deleted MediaWiki usernames, related to rev_deleted.
How to fix CVE-2021-31545
To remediate CVE-2021-31545, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.35.3 or later
Is CVE-2021-31545 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.35.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |