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CVE-2016-6843

18
FAUCET Score

CVE-2016-6843 is a cross-site scripting (XSS) vulnerability affecting Open-Xchange OX App Suite versions prior to 7.8.2-rev8. Malicious script code can be injected into contact names, which then executes when an administrator or other user with elevated permissions adds these contacts to a group via autocomplete. This medium-severity vulnerability (CVSS 6.1) allows for session hijacking or unauthorized actions within the user's context, such as sending emails or deleting data. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.8.2CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:*:rev4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 56th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

software.open-xchange.com / OX6/6.22/doc/Release_Notes_for_Patch_Release_3522_7.8.2_2016-08-29.pdf
Release NotesVendor Advisory
securityfocus.com / bid/93457
Third Party AdvisoryVDB Entry