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CVE-2020-29007

Date: April 15, 2023

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.

Language: PHP

Severity Score

Related Resources (7)

https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/
https://github.com/seqred-s-a/cve-2020-29007
https://www.mediawiki.org/wiki/Extension:Score
https://nvd.nist.gov/vuln/detail/CVE-2020-29007
https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory
https://phabricator.wikimedia.org/T257062
https://www.mend.io/vulnerability-database/CVE-2020-29007

Severity Score

Weakness Type (CWE)

Code Injection

CWE-94

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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