CVE-2025-51403 Cross-site scripting in n/a
Attackers can inject malicious scripts into the Alias Nick parameter, potentially executing arbitrary code or hijacking user sessions in Live Helper Chat.
- 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-2025-51403?
CVE-2025-51403 is a medium-severity cross-site scripting vulnerability in n/a, published on 21 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 cross-site scripting (XSS) vulnerability in the department assignment editing module of of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Alias Nick parameter.
Weakness: CWE-79
Which versions are affected by CVE-2025-51403?
It affects 1 product.
Products include Livehelperchat Live Helper Chat.
How do I fix CVE-2025-51403?
No fix has been published for CVE-2025-51403 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-2025-51403 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-51403 exists.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
- CVE-2024-27516 livehelperchat Server-Side Template Injection
- CVE-2022-0935 Host Header injection in password Reset in livehelperchat/livehelperchat
- CVE-2022-1234 XSS in livehelperchat in livehelperchat/livehelperchat
- CVE-2022-1191 SSRF on index.php/cobrowse/proxycss/ in livehelperchat/livehelperchat
- CVE-2022-1213 SSRF filter bypass port 80, 433 in livehelperchat/livehelperchat
Sources
Also known as GHSA-m4hp-gwc8-p3gj.