CVE-2025-55998 Cross-site scripting in n/a
Remote attackers can execute arbitrary JavaScript in user browsers via malicious filter parameters in Smart Search & Filter apps.
- 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
- None listed
What is CVE-2025-55998?
CVE-2025-55998 is a high-severity cross-site scripting vulnerability in n/a, published on 8 Sep 2025. 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
A cross-site scripting (XSS) vulnerability in Smart Search & Filter Shopify and BigCommerce apps allows a remote attacker to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into several filter parameter
Weakness: CWE-79
Which versions are affected by CVE-2025-55998?
It affects 1 product.
Products include Mezereon Smart Search and Filter.
How do I fix CVE-2025-55998?
No fix has been published for CVE-2025-55998 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-2025-55998 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55998 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-x2mw-h73m-vr99.