Vulnerability · Published Mar 26, 2026 · Assigned by GitHub_M
CVE-2026-33673PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables
High 7.7
In plain English
A high-severity cross-site scripting in PrestaShop from PrestaShop. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | prestashop/prestashop | 9.1.0 | GHSA-35pf-37c6-jxjv |
| Packagist | prestashop/prestashop | 8.2.5 | GHSA-35pf-37c6-jxjv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PrestaShop | PrestaShop | >= 9.0.0-alpha.1, < 9.1.0< 8.2.5 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-35pf-37c6-jxjv x_refsource_CONFIRM
- https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.5 x_refsource_MISC
- https://github.com/PrestaShop/PrestaShop/releases/tag/9.1.0 x_refsource_MISC