RCE in MediaWiki Score
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. 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.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.023 (81.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mediawiki Score
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, Mitigation)
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-29007?
- CVE-2020-29007 is a critical-severity vulnerability in MediaWiki Score, classified under Code Injection. CVSS score: 9.8/10. Published 2023-04-15.
- How severe is CVE-2020-29007?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-29007 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.