CVE-2020-13756
php-horde-css-parser - security update
9.8
CRITICAL
CVSS 3.1
EPSS 55.1%
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.
How to fix CVE-2020-13756
To remediate CVE-2020-13756, upgrade the affected package to a fixed version below.
- Debian/php-horde-css-parser—upgrade to 1.0.11-8+deb11u1 or later
- —upgrade to 1.0.11-8+deb11u1 or later
- —upgrade to 8.3.1 or later
Is CVE-2020-13756 being exploited?
Likely — EPSS is 55.1%, placing CVE-2020-13756 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1.0.11-8+deb11u1
- from 0, < 1.0.11-8+deb11u1
- >= 8.3.0, < 8.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |