CVE-2025-3597 Firelight Lightbox < 2.3.15 - Contributor+ Stored XSS

Medium 5.9 Published Updated

Contributors can execute arbitrary JavaScript via stored XSS in Firelight Lightbox when jQuery Metadata is enabled, affecting WordPress sites.

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-2025-3597?

CVE-2025-3597 is a medium-severity cross-site scripting vulnerability in Unknown Firelight Lightbox, published on 12 May 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Firelight Lightbox WordPress plugin before 2.3.15 does not prevent users with post writing capabilities from executing arbitrary Javascript when the jQuery Metadata library is enabled. While this feature is meant to only be available to Pro version users, it can be activated in the free version too, making it theoretically exploitable there as well.

Which versions are affected by CVE-2025-3597?

It affects 1 product.

Products include Firelightwp Firelight Lightbox.

How do I fix CVE-2025-3597?

No fix has been published for CVE-2025-3597 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-2025-3597 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3597 exists.

Sources

Also known as GHSA-hhrx-pjm2-54m9.

Is CVE-2025-3597 in your software?

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