A vulnerability, which was classified as problematic, was found in TrueConf Server 4.3.7. This affects an unknown part. The manipulation leads to basic cross site scripting (Stored). The CWE definition for the vulnerability is CWE-80. The weakness was disclosed 01/29/2017 by LiquidWorm as EDB-ID 41184 as Exploit (Exploit-DB). It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2017-20113. It is possible to initiate the attack remotely. There are no technical details available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The pricing for an exploit might be around USD $0-$5k at the moment. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK. It is declared as proof-of-concept. The exploit is shared for download at exploit-db.com. We expect the 0-day to have been worth approximately $0-$5k. Upgrading to version 5.0.2 is able to address this issue. It is recommended to upgrade the affected component. A possible mitigation has been published even before and not after the disclosure of the vulnerability.