CVE-2025-4951 Cross-site scripting in AppSpider Pro

Medium 4.6 Published 20 May 2025 Updated 20 May 2025

Stored XSS in ScanName field allows attackers to execute scripts if configuration file is modified, impacting AppSpider Pro users.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-4951?

CVE-2025-4951 is a medium-severity cross-site scripting vulnerability in Rapid7 AppSpider Pro, published on 20 May 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Editions of Rapid7 AppSpider Pro before version 7.5.018 is vulnerable to a stored cross-site scripting vulnerability in the "ScanName" field. Despite the application preventing the inclusion of special characters within the "ScanName" field, this could be bypassed by modifying the configuration file directly.

This is fixed as of version 7.5.018

Weakness: CWE-79

Which versions are affected by CVE-2025-4951?

It affects 1 product.

Products include Rapid7 Appspider Pro.

How do I fix CVE-2025-4951?

No fix has been published for CVE-2025-4951 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-2025-4951 being exploited?

There is no known exploitation of CVE-2025-4951 in the wild and no public exploit code.

Sources

Also known as GHSA-f252-qh43-5v8p.