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Debian: PHP-Horde-CSS-Parser Critical Remote Code Execution DLA-4333-1

debian lts
Calendar Grey October 14, 2025
Dist Debian Esm H88
Critical PHP CSS Parser update for Debian LTS addresses remote code execution risk from uncontrolled data input.
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 c...
Topics%20covered

Topics Covered

security advisory critical code execution php debian remote access

Summary

The php-horde-css-parser bundles the Sabberworm PHP CSS Parser code and
is thus also vulnerable.

For Debian 11 bullseye, this problem has been fixed in version
1.0.11-8+deb11u1.

We recommend that you upgrade your php-horde-css-parser packages.

For the detailed security status of php-horde-css-parser please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/php-horde-css-parser

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: php-horde-css-parser
Version: 1.0.11-8+deb11u1
CVE ID: CVE-2020-13756
Debian Bug:

Topics%20covered

Topics Covered

security advisory critical code execution php debian remote access

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