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CVE-2016-6854

MediumPublished

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...

Published: Dec 15, 2016
Updated: Aug 6, 2024
Assigning CNA: mitre
Evidence observed: Sep 13, 2016

Primary CVSS

6.1/ 10Medium

nvd · CVSS 3.0

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

EPSS probability estimate

2.9%

Low · next 30 days

Percentile: 86.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.).

Sources

Open-Xchange Guard 2.4.2 - Multiple Cross-Site Scripting VulnerabilitiesExploit
Benjamin Daniel Mussler · linux · Sep 13, 2016

Responsible use

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