CVE-2020-13756

Public Exploit

Description

Sabberworm PHP CSS Parser before 8.3.1 calls eval on uncontrolled data, possibly leading to remote code execution if the function allSelectors() or getSelectorsBySpecificity() is called with input from an attacker.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 25.30% Top 5%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory seclists.org Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/sabberworm/PHP-CSS-Parser/commit/2ebf59e8bfbf6cfc1653a5f0ed743b95062c62a4 third party advisory patch
https://github.com/sabberworm/PHP-CSS-Parser/releases/tag/8.3.1 third party advisory release notes
http://seclists.org/fulldisclosure/2020/Jun/7 mailing list exploit third party advisory
http://packetstormsecurity.com/files/157923/Sabberworm-PHP-CSS-Code-Injection.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-13756?
CVE-2020-13756 has been scored as a critical severity vulnerability.
How to fix CVE-2020-13756?
To fix CVE-2020-13756, 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-2020-13756 being actively exploited in the wild?
It is possible that CVE-2020-13756 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~25% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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