UBUNTU-CVE-2021-30158

Advisory lineage Upstream: 1 Downstream: 0

Upstream

CVE-2021-30158

Published: 06 Apr 2021, 07:15

Last modified:27 May 2026, 10:16

Vulnerability Summary

Overall Risk (default)

low

21/100

CVSS Score

5.3 MEDIUM

3.1 (osv_ubuntu)

EPSS Score

No data

KEV

Not listed

Ransomware

No reports

Public exploits

None found

Dark Web

Not detected

Timeline

06 Apr 2021, 07:15

Published

Vulnerability first disclosed

27 May 2026, 10:16

Last Modified

Vulnerability information updated

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 Metrics

v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

ubuntu•mediawiki
all | all | all | all | all | all | all