High severity · published Oct 11, 2021
CVE-2021-41801
The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control
8.8
CVSS
1.2%
EPSS
No
On KEV
Description
The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
before 1.31.16; 1.35.0 before 1.35.4; 1.36.0 before 1.36.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41801
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41801
lists.wikimedia.org
https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
Issue Tracking
https://phabricator.wikimedia.org/T279090
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