URI validation failure on SVG parsing in Dompdf
概要
URI validation failure on SVG parsing in Dompdf
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing `` 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.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com