PrestaShop XSS via ValidateCore::isCleanHTML before 8.0.4 / 1.7.8.9
CVE-2023-30838 Published on April 25, 2023
PrestaShop vulnerable to possible XSS injection through Validate::isCleanHTML method
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.
Vulnerability Analysis
CVE-2023-30838 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2023-30838 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2023-30838
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Affected Versions
PrestaShop:- Version >= 8.0.0, < 8.0.4 is affected.
- Version < 1.7.8.9 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2023-30838
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| composer | prestashop/prestashop | >= 8.0.0, < 8.0.4 | 8.0.4 |
| composer | prestashop/prestashop | < 1.7.8.9 | 1.7.8.9 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.