CVE-2025-61583 TS3 Manager is vulnerable to unauthenticated reflected XSS attack due to insecure error handling

Medium 4.3 Published Updated

Attackers can execute arbitrary scripts in victims' browsers via malicious server hostnames in the login error handling, potentially leading to session hijacking.

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-2025-61583?

CVE-2025-61583 is a medium-severity cross-site scripting vulnerability in joni1802 ts3-manager, published on 1 Oct 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

TS3 Manager is modern web interface for maintaining Teamspeak3 servers. A reflected cross-site scripting vulnerability has been identified in versions 2.2.1 and earlier. The vulnerability exists in the error handling mechanism of the login page, where malicious scripts embedded in server hostnames are executed in the victim's browser context without proper sanitization. This issue is fixed in version 2.2.2.

Weakness: CWE-80, CWE-20

Which versions are affected by CVE-2025-61583?

It affects 1 product.

Products include Joni1802 Ts3 Manager.

How do I fix CVE-2025-61583?

No fix has been published for CVE-2025-61583 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-2025-61583 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-61583 exists.

Sources

Also known as GHSA-qw6j-37r6-m93g.

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