CVE-2021-31554
MEDIUM
5.4
CVSS Score
Published: April 22, 2021 at 02:29 AM UTC
Updated: June 17, 2026 at 03:51 AM UTC
1 product affected across 1 vendorMediaWiki
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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.5%
Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It improperly handled account blocks for certain automatically created MediaWiki user accounts, thus allowing nefarious users to remain unblocked.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 1.35.2
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCIssue TrackingVendor Advisory
Source: [email protected]
https://gerrit.wikimedia.org/r/q/Ie1f4333d5b1c9d17fb2236fe38a31de427a4cc48x_refsource_MISCThird Party Advisory
Source: [email protected]
https://phabricator.wikimedia.org/T272244CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-863
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