CVE-2023-23924
Assigner: GitHub_M
Published: 2023-01-31T23:54:30.162Z
State: PUBLISHED
title: URI validation failure on SVG parsing in Dompdf
problemTypes: descriptions: cweId: CWE-551
description: CWE-551: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 10
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: LOW
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
version: 3.1
affected: vendor: dompdf
product: dompdf
versions: version: < 2.0.2
status: affected
descriptions: value: 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.

source: advisory: GHSA-3cw5-7cxw-v5qg
discovery: UNKNOWN