CVE-2020-29007
CRITICAL 9.8EPSS 2.3%
The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability due to improper sandboxing of the GNU LilyPond executable. This allows any user with an ability to edit articles (potentially including unauthenticated anonymous users) to execute arbitrary Scheme or shell code by using crafted {{Image data to generate musical scores containing malicious code.
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 2.32% chance of exploitation in the next 30 days, 83rd percentile
- Published
- 2023-04-15
- Updated
- 2025-02-06
Proof-of-concept exploits (1)
- seqred-s-a/cve-2020-290070★ · 2020-12-08
Security advisories
- https://www.mediawiki.org/wiki/Extension:Score
- https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory
- https://phabricator.wikimedia.org/T257062
- https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score