Critical severity · published Apr 15, 2023
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
9.8
CVSS
2.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Score · Mediawiki
through 0.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29007
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29007
Exploit
https://github.com/seqred-s-a/cve-2020-29007
Exploit
https://phabricator.wikimedia.org/T257062
Exploit
https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/
Vendor Advisory
https://www.mediawiki.org/wiki/Extension:Score
Vendor Advisory
https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory