CVE-2023-30838: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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 can lead to cross-site scripting (XSS) injection, allowed by the presence of pre-setup @keyframes methods. This XSS, which hijacks HTML attributes, can be triggered without any interaction by the visitor/administrator, which makes it as dangerous as a trivial XSS attack. Contrary to other attacks which target HTML attributes and 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. Versions 8.0.4 and 1.7.8.9 contain a fix for this issue.
References
- github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c
- github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693
- github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.9
- github.com/PrestaShop/PrestaShop/releases/tag/8.0.4
- github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp
- github.com/advisories/GHSA-fh7r-996q-gvcp
- nvd.nist.gov/vuln/detail/CVE-2023-30838
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