Critical severity9.8NVD Advisory· Published Apr 15, 2023· Updated Jun 17, 2026
CVE-2020-29007
CVE-2020-29007
Description
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.
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Affected products
2Patches
Vulnerability mechanics
References
4- phabricator.wikimedia.org/T257062nvdExploitThird Party Advisory
- seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/nvdExploitThird Party Advisory
- www.mediawiki.org/wiki/Extension:ScorenvdVendor Advisory
- www.mediawiki.org/wiki/Extension:Score/2021_security_advisorynvdVendor Advisory
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