CVE-2021-31554

CVSS V2 Medium 5.5 CVSS V3 Medium 5.4

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.

Overview

CVE ID
CVE-2021-31554

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-04-22T03:15:08

Last Modified Date
2022-07-12T17:42:04

Weakness Enumerations

CWE	URL
CWE-863	http://cwe.mitre.org/data/definitions/863.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:mediawiki:mediawiki::::::::	1	OR		1.35.2

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:S/C:P/I:P/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
SINGLE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
5.5

Severity
MEDIUM

Exploitability Score
8

Impact Score
4.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
5.4

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
2.5

References

Reference URL	Reference Tags
https://phabricator.wikimedia.org/T272244	Third Party Advisory
https://gerrit.wikimedia.org/r/q/Ie1f4333d5b1c9d17fb2236fe38a31de427a4cc48	Issue Tracking Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-31554
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31554

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:14:43				Added to TrackCVE
2022-12-06 02:15:38	2021-04-22T03:15Z	2021-04-22T03:15:08	CVE Published Date	updated
2022-12-06 02:15:38		2022-07-12T17:42:04	CVE Modified Date	updated
2022-12-06 02:15:38		Analyzed	Vulnerability Status	updated