Medium severity · published Jun 30, 2023
CVE-2023-37300
An issue was discovered in the CheckUserLog API in the CheckUser extension for MediaWiki through 1.39.3
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
An issue was discovered in the CheckUserLog API in the CheckUser extension for MediaWiki through 1.39.3. There is incorrect access control for visibility of hidden users.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
through 1.39.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-37300
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-37300
Vendor Advisory
https://gerrit.wikimedia.org/r/q/I993fdcae1fedb7dd543b35a477026bc727615b0a
Exploit
https://phabricator.wikimedia.org/T330968
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