GHSA-fh7r-996q-gvcp

ghsaUSosv

Possible XSS injection through Validate::isCleanHTML method

Advisory ansehen veröffentlicht 2023-04-25Lizenz: CC-BY-4.0

### 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

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IDSchweregrad ausnutzbar
CVE-2023-30838UScritical9.9—
PrestaShop is an Open Source e-commerce web application. Prior to versions 8.0.4 and 1.7.8.9, the `ValidateCore::isCleanHTML()` method of Prestashop misses hijackable events which…
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Referenzen

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