GHSA-fh7r-996q-gvcpHighCVSS 8.0

Possible XSS injection through Validate::isCleanHTML method

Published
April 25, 2023
Last Modified
November 10, 2023

🔗 CVE IDs covered (1)

📋 Description

Impact

ValidateCore::isCleanHTML() method of Prestashop misses hijickable events which can lead to XSS injection, allowed by the presence of pre-setup @keyframes methods.

This XSS which hijacks HTML attributes will be triggered without any interaction of the visitor/administrator which makes it as dangerous as a trivial XSS.

Contrary to most XSS which target HTML attributes and which are triggered without user interaction (such as onload / onerror which suffer from a very limited scope), this one can hijack every HTML element, which increases the danger due to a complete HTML elements scope.

Patches

The patch will be on PS 8.0.4 and PS 1.7.8.9

References

🎯 Affected products2

  • composer/prestashop/prestashop:>= 8.0.0, < 8.0.4
  • composer/prestashop/prestashop:< 1.7.8.9

🔗 References (7)