CVE-2020-29007

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 5.73% Top 15%
Vendor Advisory mediawiki.org Vendor Advisory mediawiki.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/seqred-s-a/cve-2020-29007 mitigation third party advisory exploit
https://www.mediawiki.org/wiki/Extension:Score vendor advisory
https://phabricator.wikimedia.org/T257062 third party advisory exploit
https://seqred.pl/en/cve-2020-29007-remote-code-execution-in-mediawiki-score/ third party advisory exploit
https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-29007?
CVE-2020-29007 has been scored as a critical severity vulnerability.
How to fix CVE-2020-29007?
To fix CVE-2020-29007, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-29007 being actively exploited in the wild?
It is possible that CVE-2020-29007 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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