Medium severity · published Apr 6, 2021
CVE-2021-30158
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2
5.3
CVSS
1.7%
EPSS
No
On KEV
Description
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.
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)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
33; 34 · source: NVD
ME
Mediawiki · Mediawiki
before 1.31.12; 1.32.0 before 1.35.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30158
Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/
Exploit
https://phabricator.wikimedia.org/T277009
Third Party Advisory
https://security.gentoo.org/glsa/202107-40
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