CVE-2026-44212 PrestaShop: Stored XSS executable in customer service view
An unauthenticated attacker can inject malicious scripts via the Contact Us form, leading to back-office session hijacking and full administrative takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-44212?
CVE-2026-44212 is a critical cross-site scripting vulnerability in PrestaShop, published on 14 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
PrestaShop is an open source e-commerce web application. Prior to 8.2.6 and 9.1.1, there is a stored Cross-Site Scripting (XSS) vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee opens the affected customer thread, enabling session hijacking and full back-office takeover. This vulnerability is fixed in 8.2.6 and 9.1.1.
Weakness: CWE-79
Which versions are affected by CVE-2026-44212?
4 open source packages ship an affected version, including prestashop/prestashop.
| Package | Affected | Fixed in |
|---|---|---|
prestashop/prestashop Packagist | All versions | 8.2.6 |
prestashop/prestashop Packagist | All versions | 8.2.6 |
prestashop/prestashop Packagist | From 9.0.0 | 9.1.1 |
prestashop/prestashop Packagist | From 9.0.0 | 9.1.1 |
How do I fix CVE-2026-44212?
Upgrade prestashop/prestashop to a fixed version for your release line: 8.2.6 or 9.1.1.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-44212 being exploited?
There is no known exploitation of CVE-2026-44212 in the wild and no public exploit code.
Sources
Also known as GHSA-w9f3-qc75-qgx9.