XSS in Open-Xchange Ox Guard
CVE-2016-6851
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/92920 (VDB Entry, Third Party Advisory, vdb-entry)
- packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Script… (Exploit, VDB Entry, Third Party Advisory)
- www.exploit-db.com/exploits/40377/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securityfocus.com/archive/1/539395/100/0/threaded (mailing-list)
Frequently asked questions
- What is CVE-2016-6851?
- CVE-2016-6851 is a medium-severity vulnerability in Open-Xchange Ox Guard, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-12-15.
- How severe is CVE-2016-6851?
- Medium severity. CVSS v3 base score is 6.1 out of 10.