Medium severity · published Jan 10, 2022
CVE-2021-46148
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1
6.5
CVSS
1.2%
EPSS
No
On KEV
Description
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. Some unprivileged users can view confidential information (e.g., IP addresses and User-Agent headers for election traffic) on a testwiki SecurePoll instance.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
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 1.35.5; 1.36.0 before 1.36.3; 1.37.0 before 1.37.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46148
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46148
Third Party Advisory
https://gerrit.wikimedia.org/r/q/Ib2715adb281f8892b586dcb1895e87ac0eb548b0
Third Party Advisory
https://phabricator.wikimedia.org/T290808
Third Party Advisory
https://phabricator.wikimedia.org/T290856
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