CVEvulnerability
CVE-2021-31547
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-04-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:P/I:N/A:N
- Weaknesses
- CWE-200
Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. Its AbuseFilterCheckMatch API reveals suppressed edits and usernames to unprivileged users through the iteration of crafted AbuseFilter rules.
Affected configurations
• mediawiki mediawiki (<= 1.35.2)
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://gerrit.wikimedia.org/r/q/I3f7dbd8b873d411e37c8c3aac2339bf5ec36907d Issue Tracking, Third Party Advisory
- https://gerrit.wikimedia.org/r/q/I4900b1be73323599d74e3164447f81eded094d75 Issue Tracking, Third Party Advisory
- https://phabricator.wikimedia.org/T223654 Third Party Advisory
- https://gerrit.wikimedia.org/r/q/I3f7dbd8b873d411e37c8c3aac2339bf5ec36907d Issue Tracking, Third Party Advisory
- https://gerrit.wikimedia.org/r/q/I4900b1be73323599d74e3164447f81eded094d75 Issue Tracking, Third Party Advisory
- https://phabricator.wikimedia.org/T223654 Third Party Advisory