CVE-2016-6854 describes a cross-site scripting (XSS) vulnerability in Open-Xchange OX Guard versions prior to 2.4.2-rev5. This flaw allows malicious script code embedded within an inline PGP-signed email to execute when the signature is verified, impacting the user's context. The vulnerability carries a CVSSv3 score of 6.1 (Medium), indicating a network-based attack requiring user interaction with low complexity, potentially leading to session hijacking or unauthorized actions like sending emails or deleting data. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry (EDB-40377) confirms the existence of proof-of-concept code, though community discussion and media coverage remain minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.4.2CPE matchmatch criteria | cpe:2.3:a:open-xchange:ox_guard:*:rev4:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.
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 records are not available for this CVE.