CVE-2020-29007
The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability due to improper sandboxing of the GNU LilyPond executable.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.32% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- mediawiki/score
- Source
- cve@mitre.org
References
- https://github.com/seqred-s-a/cve-2020-29007Exploit, Mitigation, Third Party Advisory
- https://phabricator.wikimedia.org/T257062Exploit, Third Party Advisory
- https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/Exploit, Third Party Advisory
- https://www.mediawiki.org/wiki/Extension:ScoreVendor Advisory
- https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisoryVendor Advisory
- https://github.com/seqred-s-a/cve-2020-29007Exploit, Mitigation, Third Party Advisory
- https://phabricator.wikimedia.org/T257062Exploit, Third Party Advisory
- https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/Exploit, Third Party Advisory
- https://www.mediawiki.org/wiki/Extension:ScoreVendor Advisory
- https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisoryVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.