CVE-2026-6999 BIVOCOM TR321 Wireless Setting cross site scripting
Remote attackers can inject malicious scripts via the SSID field in the wireless settings of BIVOCOM TR321 devices, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-6999?
CVE-2026-6999 is a medium-severity cross-site scripting vulnerability in BIVOCOM TR321, published on 25 Apr 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A flaw has been found in BIVOCOM TR321 21.1.1.50. Affected by this vulnerability is an unknown functionality of the component Wireless Setting. This manipulation of the argument Network Name SSID causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been published and may be used. You should upgrade the affected component.
Which versions are affected by CVE-2026-6999?
How do I fix CVE-2026-6999?
No fix has been published for CVE-2026-6999 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-2026-6999 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6999 exists.
Sources
Also known as GHSA-q75h-fc9r-m4g3.