NetSight
high8.0

CVE-2023-30838

Possible XSS injection through Validate::isCleanHTML method

Impact

### 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 packages

EcosystemPackageAffectedFixed in
composerprestashop/prestashop>= 8.0.0, < 8.0.48.0.4

Affected products

VendorProductAffected versions
PrestashopPrestashop
before 1.7.8.9
from 8.0.0 before 8.0.4

Weakness classification

References