CVE-2026-39428 CubeCart: Stored Cross-Site Scripting (XSS)
Administrators can inject malicious scripts into product fields, leading to session hijacking or unauthorized actions for other users viewing those pages.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-39428?
CVE-2026-39428 is a medium-severity cross-site scripting vulnerability in cubecart v6, published on 13 May 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
CubeCart is an ecommerce software solution. Prior to 6.6.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in CubeCart v6.x. An attacker with administrative privileges can inject malicious JavaScript payloads into multiple fields during the creation or modification of a product. These payloads are stored in the database and executed whenever a user (customer or another administrator) views the affected product pages, which could lead to session hijacking or unauthorized actions. This vulnerability is fixed in 6.6.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-39428?
How do I fix CVE-2026-39428?
No fix has been published for CVE-2026-39428 yet. Limit exposure of the affected software until one is available.
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-2026-39428 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39428 exists.
Sources
Also known as GHSA-gvxc-5v7r-272m.