What is CVE-2022-28323?

CVE-2022-28323 is a high-severity vulnerability in MediaWiki. CVSS score: 7.5/10. Published 2022-04-30.

How severe is CVE-2022-28323?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in MediaWiki

CVE-2022-28323

An issue was discovered in MediaWiki through 1.37.2. The SecurePoll extension allows a leak because sorting by timestamp is supported,

Published 2022-04-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (70.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.014 · change: +0.000

Affected products

MediaWiki

References

phabricator.wikimedia.org/T298434 (Permissions Required)
gerrit.wikimedia.org/r/q/I9d3b9a942ea71d777ec32121fa36262f549d283d (Vendor Advisory)
gerrit.wikimedia.org/r/q/93758c4c13b972d240a6313e0472df1667118893 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-28323?: CVE-2022-28323 is a high-severity vulnerability in MediaWiki. CVSS score: 7.5/10. Published 2022-04-30.
How severe is CVE-2022-28323?: High severity. CVSS v3 base score is 7.5 out of 10.