cve/2016/CVE-2016-6854.md

### [CVE-2016-6854](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6854)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code which got injected to a mail with inline PGP signature gets executed when verifying the signature. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.).

### POC

#### Reference
- http://packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.html
- https://www.exploit-db.com/exploits/40377/

#### Github
- https://github.com/ARPSyndicate/cvemon