github.com
https://github.com/PrestaShop/PrestaShop CVE-2026-33673
HIGH
PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables
Record summary
CVE-2026-33673 has a selected CVSS score of 7.7 (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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Mar 27, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
PrestaShopBrowse PrestaShop / PrestaShop | CVE List | >= 9.0.0-alpha.1, < 9.1.0 | affected |
| < 8.2.5 | affected | ||
prestashop/prestashopBrowse Packagist / prestashop/prestashop | GitHub Advisory | 9.0.0-alpha.1 to < 9.1.0 · Fixed in 9.1.0 | affected |
| Before 8.2.5 · Fixed in 8.2.5 | affected |
References
5github.com
https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.5 github.com
https://github.com/PrestaShop/PrestaShop/releases/tag/9.1.0 github.comConfirmation
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-35pf-37c6-jxjv nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-33673