CVE-2021-30158
MEDIUM severity · CVSS 5.3 · Improper authentication
5.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://phabricator.wikimedia.org/T277009 ↗
Additional information
- NVD record
- https://phabricator.wikimedia.org/T277009Patch
- https://lists.debian.org/debian-lts-announce/2021/05/msg00003.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00006.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/
- https://security.gentoo.org/glsa/202107-40Advisory
- https://www.debian.org/security/2021/dsa-4889Advisory