CVE-2016-6851

Public Exploit

Description

An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code can be provided as parameter to the OX Guard guest reader web application. This allows cross-site scripting attacks against arbitrary users since no prior authentication is needed. 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.) in case the user has an active session on the same domain already.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.37% Top 25%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory securityfocus.com Third-Party Advisory exploit-db.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/92920 vdb entry third party advisory
http://packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.html exploit vdb entry third party advisory
https://www.exploit-db.com/exploits/40377/ exploit vdb entry third party advisory
http://www.securityfocus.com/archive/1/539395/100/0/threaded mailing list

Frequently Asked Questions

What is the severity of CVE-2016-6851?
CVE-2016-6851 has been scored as a medium severity vulnerability.
How to fix CVE-2016-6851?
To fix CVE-2016-6851, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6851 being actively exploited in the wild?
It is possible that CVE-2016-6851 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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