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Vulnerability record · CVE-2023-30838 · published 25 April 2023

CVE-2023-30838: Prestashop cross-site scripting vulnerability

Prestashop · Prestashop

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.

9.9 CVSS 3.1 Critical EPSS 1.0% · top 37.3% CWE-79 · Cross-site scripting
9.9CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c Patch
https://github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693 Patch
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp Vendor Advisory
https://github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c Patch
https://github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693 Patch
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-30838), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.