CVE-2026-4765 Self Cross-Site Scripting (Self-XSS) in Tallos Chat by RD Station Conversas
Self-XSS in Tallos Chat allows attackers to inject JavaScript into their own session via the name parameter, impacting only the user who provides the payload.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4765?
CVE-2026-4765 is a cross-site scripting vulnerability in RD Station Conversas Tallos Chat, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Self Cross-Site Scripting (Self-XSS) vulnerability in the RD Station Conversas chat feature. The vulnerability lies in the ‘name’ parameter of the initialisation process due to incorrect sanitisation of user-supplied input. Exploitation allows specially crafted JavaScript code to be injected, which is executed within the context of the user’s own session who provides the payload. The demonstrated impact is limited to the user who enters and executes the payload.
Weakness: CWE-79
Which versions are affected by CVE-2026-4765?
How do I fix CVE-2026-4765?
No fix has been published for CVE-2026-4765 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-2026-4765 being exploited?
There is no known exploitation of CVE-2026-4765 in the wild and no public exploit code.
Sources
Also known as GHSA-vr42-524g-49w2.