CVE-2023-50252 HIGH

CVE-2023-50252: php-svg-lib unsafe attributes merge when parsing `use` tag

Vendor Dompdf
Product php-svg-lib
Weakness CWE-15
Published December 12, 2023
Last update August 2, 2024
View on NVD All CVEs

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

php-svg-lib is an SVG file parsing / rendering library. Prior to version 0.5.1, when handling `<use>` tag that references an `<image>` tag, it merges the attributes from the `<use>` tag to the `<image>` tag. The problem pops up especially when the `href` attribute from the `<use>` tag has not been sanitized. This can lead to an unsafe file read that can cause PHAR Deserialization vulnerability in PHP prior to version 8. Version 0.5.1 contains a patch for this issue.

Key dates

02Disclosure timeline

December 12, 2023 CVE published
August 2, 2024 Record updated