CVE-2017-20117 TrueConf Server group DOM cross site scripting

Low 3.5 Published 29 Jun 2022 Updated 15 Apr 2025

Remote attackers can execute arbitrary scripts in the admin interface via DOM-based XSS, potentially compromising administrative accounts.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2017-20117?

CVE-2017-20117 is a low-severity cross-site scripting vulnerability in TrueConf Server, published on 29 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability was found in TrueConf Server 4.3.7. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/group. The manipulation leads to basic cross site scripting (DOM). The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-79, CWE-80

Which versions are affected by CVE-2017-20117?

It affects 1 product.

Products include Trueconf Server.

How do I fix CVE-2017-20117?

No fix has been published for CVE-2017-20117 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-2017-20117 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20117 exists.

Sources

Also known as GHSA-7x9g-vgx6-j7ch.