CVE-2026-33673
High
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.
SeverityHigh
CVSS7.6
Exploit probability—
Product
Prestashop
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- prestashop prestashop8.2.5, 9.1.0 or later
- prestashop/prestashop9.1.0, 8.2.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| prestashop prestashop | v < 8.2.5, 9.0.0 ≤ v < 9.1.0 | 8.2.5, 9.1.0 |
| prestashop/prestashopPackagist | 9.0.0-alpha.1 ≤ v < 9.1.0, v < 8.2.5 | 9.1.0, 8.2.5 |
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