cve.bz

CVE-2021-21275

4.3 mediumEPSS 0.7%

Medium (4.3). EPSS 0.7% chance of exploitation in the next 30 days.

The MediaWiki "Report" extension has a Cross-Site Request Forgery (CSRF) vulnerability. Before fixed version, there was no protection against CSRF checks on Special:Report, so requests to report a revision could be forged. The problem has been fixed in commit f828dc6 by making use of MediaWiki edit tokens.

Severity

CVSS 3.1

4.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE
CWE-352
Published
Modified
Record from
the NVD, synced

Affected

References

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