CVE-2021-31548 — MEDIUM (6.5)

Q: How severe is CVE-2021-31548?

CVE-2021-31548 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-31548?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.

Vulnerability Description

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. A MediaWiki user who is partially blocked or was unsuccessfully blocked could bypass AbuseFilter and have their edits completed.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.35.2

Related Weaknesses (CWE)

CWE-863

References

https://gerrit.wikimedia.org/r/q/Ifac795125927d584a31d95e1b4c4241eef860fa1Issue TrackingThird Party Advisory
https://phabricator.wikimedia.org/T272333Third Party Advisory
https://gerrit.wikimedia.org/r/q/Ifac795125927d584a31d95e1b4c4241eef860fa1Issue TrackingThird Party Advisory
https://phabricator.wikimedia.org/T272333Third Party Advisory

FAQ

What is CVE-2021-31548?

CVE-2021-31548 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. A MediaWiki user who is partially blocked or was unsuccessfully blocked could bypass AbuseFilter and have their edits...

How severe is CVE-2021-31548?

CVE-2021-31548 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-31548?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.