High severity · published Jul 2, 2021
CVE-2021-36132
An issue was discovered in the FileImporter extension in MediaWiki through 1.36
8.8
CVSS
1%
EPSS
No
On KEV
Description
An issue was discovered in the FileImporter extension in MediaWiki through 1.36. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations (specifically file uploads) that they should not be allowed to perform.
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)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
through 1.36 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36132
Patch
https://gerrit.wikimedia.org/r/q/I8ff2a67abd2c118a3469e4410eac2a451bfa76c3
Exploit
https://phabricator.wikimedia.org/T280590
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