CVE-2020-29007

CVSS 9.8 CRITICALEPSS 2.3%CWE-94

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

n/a · n/a

public PoCs found — 1

githubgithub.com/seqred-s-a/cve-2020-29007★ 0

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://github.com/seqred-s-a/cve-2020-29007 https://phabricator.wikimedia.org/T257062 https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/https://www.mediawiki.org/wiki/Extension:Score https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory