CVE-2020-13756
Sabberworm PHP CSS Parser before 8.3.1 calls eval on uncontrolled data, possibly leading to remote code execution if the function allSelectors() or...
- Published
- Jun 3, 2020
- Updated
- Nov 3, 2025
- Assigning CNA
- mitre
- Evidence observed
- Aug 9, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1- CVE-2020-13756-envResearch
Vulnerable test environment for CVE-2020-13756 (Sabberworm PHP CSS Parser RCE)
Responsible use
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