CVE-2026-84437 OpenCart Autocomplete Workflow address.php cross site scripting
Remote attackers can inject malicious scripts via the address field in OpenCart's autocomplete workflow, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-84437?
CVE-2026-84437 is a medium-severity cross-site scripting vulnerability in OpenCart, published on 2 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in OpenCart 4.1.0.3/4.1.0.4. The impacted element is an unknown function of the file catalog/controller/account/address.php of the component Autocomplete Workflow. The manipulation of the argument address_1 results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-84437?
How do I fix CVE-2026-84437?
No fix has been published for CVE-2026-84437 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-2026-84437 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84437 exists.
Sources
Also known as GHSA-x42m-4578-3cr2.