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CVE-2024-6870 Responsive Lightbox & Gallery <= 2.4.7 - Authenticated (Author+) Stored Cross-Site Scripting via File Upload

Medium 6.4 Published Updated

Authenticated attackers with Author access can inject arbitrary scripts via file uploads in the Responsive Lightbox & Gallery plugin.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-6870?

CVE-2024-6870 is a medium-severity cross-site scripting vulnerability in dfactory Responsive Lightbox & Gallery, published on 22 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via file uploads in all versions up to, and including, 2.4.7 due to insufficient input sanitization and output escaping affecting the rl_upload_image AJAX endpoint. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the 3gp2 file.

Weakness: CWE-79

Which versions are affected by CVE-2024-6870?

It affects 1 product.

Products include Dfactory Responsive Lightbox.

How do I fix CVE-2024-6870?

No fix has been published for CVE-2024-6870 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-2024-6870 being exploited?

There is no known exploitation of CVE-2024-6870 in the wild and no public exploit code.

Sources

Also known as GHSA-455v-j4c3-4fqr.

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