--- cve: "CVE-2023-30838" severity: "HIGH" cvss: 8.6 epss: "1%" vendor: "PrestaShop" kev: false exploited: false published: "2023-04-25 19:15:11" tags: [cve, security, high] source: tsecurity.de CVE-Dossier exported: "2026-09-18T04:55:58+02:00" --- # CVE-2023-30838 > 8.6 HIGH · 🧪 PoC ## Beschreibung 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-Vektor ``` CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Hoch | good | | PR Privilegien | Gering | warn | | UI Interaktion | Keine | bad | | S Scope | Verändert | bad | | C Vertraulichkeit | Hoch | bad | | I Integrität | Hoch | bad | | A Verfügbarkeit | Hoch | bad | ## Patch verfügbar (OSV) - 49d43b5fa0140304e64b530a5367cb30785eb15d (Commit) - 95d94dabaf40ba63be737b4a9cdbac328e66e5f9 (Commit) ## Referenzen - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-30838) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_