An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5.

Published 9 y ago 2016-12-15 · modified 4 mo ago 2026-06-17 · JSON

CVSS

6.1

v3.0 · NVD

CISA KEV

not known exploited

EPSS

2.4%

percentile 84%

Public exploits

Exploit-DB

An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code and references to external websites can be injected to the names of PGP public keys. When requesting that key later on using a specific URL, such script code might get executed. In case of injecting external websites, users might get lured into a phishing scheme. 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.).

Exploit prediction (EPSS)

2.44% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.

Exploits and detections

EDB-40377 Open-Xchange Guard 2.4.2 - Multiple Cross-Site Scripting Vulnerabilities · webapps · 2016-09-13

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	6.1	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`
NVD	2.0	4.3	`AV:N/AC:M/Au:N/C:N/I:P/A:N`

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

securityfocus.com /bid/92920 · vdb-entry, x_refsource_BID, x_transferred
packetstormsecurity.com /files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.html · x_refsource_CONFIRM, x_transferred
exploit-db.com /exploits/40377/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
securityfocus.com /archive/1/539395/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred

Sources

CVE List: CVE-2016-6853
NVD: CVE-2016-6853

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.