CVE-2020-13756: Improper Input Validation

June 3, 2020 (updated July 21, 2021)

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

References

packetstormsecurity.com/files/157923/Sabberworm-PHP-CSS-Code-Injection.html
nvd.nist.gov/vuln/detail/CVE-2020-13756

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