CVE-2023-23924

CVE-2023-23924 · URI validation failure on SVG parsing in Dompdf

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing `<image>` tags with uppercase letters. This may lead to arbitrary object unserialize on PHP < 8, through the `phar` URL wrapper. An attacker can exploit the vulnerability to call arbitrary URL with arbitrary protocols, if they can provide a SVG file to dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, that will lead to the very least to an arbitrary file deletion and even remote code execution, depending on classes that are available.

CVSS 10.0 · Critical · EPSS 3.6% · Fix available

Published

2023-01-31T23:54:30.162Z

Updated

2025-03-10T21:17:31.944Z

Stack: php

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