CVE-2020-9382 json
An issue was discovered in the Widgets extension through 1.4.0 for MediaWiki.
published 2020-02-24 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30203
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T245850 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:P/I:P/A:N |
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
gerrit.wikimedia.org
/r/q/I953e060bc6994ffdba9f380c98173f53f8ca1ea8
patch, third-party-advisory
-
phabricator.wikimedia.org
/T245850
exploit, third-party-advisory
Sources
- CVE List CVE-2020-9382
- NVD CVE-2020-9382
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.