What is CVE-2021-32774?

CVE-2021-32774 is a medium-severity vulnerability in Miraheze Datadump, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2021-07-20.

How severe is CVE-2021-32774?

Medium severity. CVSS v3 base score is 6.1 out of 10.

CSRF in Miraheze Datadump

CVE-2021-32774

DataDump is a MediaWiki extension that provides dumps of wikis. Prior to commit 67a82b76e186925330b89ace9c5fd893a300830b, DataDump had no protection against CSRF attacks so requests to generate or delete dumps could be forged. The vulnerability was patched in commit 67a82b76e186925330b89ace9c5fd893a300830b. There are no known workarounds. You must completely disable DataDump.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Miraheze Datadump — versions < 67a82b76e186925330b89ace9c5fd893a300830b

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

github.com/miraheze/DataDump/security/advisories/GHSA-29mh-4vhv-x8mr (Patch, Third Party Advisory)
github.com/miraheze/DataDump/commit/67a82b76e186925330b89ace9c5fd893a300830b (Patch, Third Party Advisory)
phabricator.miraheze.org/T7593 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-32774?: CVE-2021-32774 is a medium-severity vulnerability in Miraheze Datadump, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2021-07-20.
How severe is CVE-2021-32774?: Medium severity. CVSS v3 base score is 6.1 out of 10.