What is CVE-2020-9382?

CVE-2020-9382 is a medium-severity vulnerability in Widgets Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.4/10. Published 2020-02-24.

How severe is CVE-2020-9382?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Widgets Project

CVE-2020-9382

An issue was discovered in the Widgets extension through 1.4.0 for MediaWiki. Improper title sanitization allowed for the execution of any wiki page as a widget (as defined by this extension) via MediaWiki's {{#widget:}} parser function.

Published 2020-02-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Widgets Project

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

phabricator.wikimedia.org/T245850 (Exploit, Third Party Advisory)
gerrit.wikimedia.org/r/q/I953e060bc6994ffdba9f380c98173f53f8ca1ea8 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-9382?: CVE-2020-9382 is a medium-severity vulnerability in Widgets Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.4/10. Published 2020-02-24.
How severe is CVE-2020-9382?: Medium severity. CVSS v3 base score is 5.4 out of 10.