CVE-2025-54299 Cross-site scripting in No Boss Testimonials component for Joomla
Attackers can inject malicious scripts via stored XSS in the No Boss Testimonials Joomla component, potentially compromising user sessions.
- 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-2025-54299?
CVE-2025-54299 is a critical cross-site scripting vulnerability in nobossextensions.com No Boss Testimonials component for Joomla, published on 28 Jul 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 stored XSS vulnerability in No Boss Testimonials component 1.0.0-3.0.0 and 4.0.0-4.0.2 for Joomla was discovered.
Weakness: CWE-79
Which versions are affected by CVE-2025-54299?
How do I fix CVE-2025-54299?
No fix has been published for CVE-2025-54299 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-2025-54299 being exploited?
There is no known exploitation of CVE-2025-54299 in the wild and no public exploit code.
Sources
Also known as GHSA-f8x3-2896-944x.