What is CVE-2017-7739?

CVE-2017-7739 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-11-13.

How severe is CVE-2017-7739?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Fortinet Fortios

CVE-2017-7739

A reflected Cross-site Scripting (XSS) vulnerability in web proxy disclaimer response web pages in Fortinet FortiOS 5.6.0, 5.4.0 to 5.4.5, 5.2.0 to 5.2.11 allows an unauthenticated attacker to inject arbitrary web script or HTML in the context of the victim's browser via sending a maliciously crafted URL to the victim.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (61.6th percentile) — read the EPSS interpretation.

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.

Affected products

Fortinet Fortios — versions 5.2.0, 5.2.1, 5.2.2
Fortinet, Inc. Fortios — versions 5.6.0, 5.2.11, 5.2.10, 5.2.9, 5.2.8, 5.2.7, 5.2.6, 5.2.5, 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@fortinet.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
psirt@fortinet.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
psirt@fortinet.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2017-7739?: CVE-2017-7739 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-11-13.
How severe is CVE-2017-7739?: Medium severity. CVSS v3 base score is 6.1 out of 10.