What is CVE-2016-5305?

CVE-2016-5305 is a medium-severity vulnerability in Symantec Endpoint Protection Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2016-06-30.

How severe is CVE-2016-5305?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Symantec Endpoint Protection Manager

CVE-2016-5305

Multiple cross-site scripting (XSS) vulnerabilities in management scripts in Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allow remote authenticated users to inject arbitrary web script or HTML via a "DOM link manipulation" attack.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Symantec Endpoint Protection Manager

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.symantec.com/security_response/securityupdates/detail.jsp (Vendor Advisory)
www.securitytracker.com/id/1036196 (vdb-entry)
www.securityfocus.com/bid/91448 (vdb-entry)

Frequently asked questions

What is CVE-2016-5305?: CVE-2016-5305 is a medium-severity vulnerability in Symantec Endpoint Protection Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2016-06-30.
How severe is CVE-2016-5305?: Medium severity. CVSS v3 base score is 5.4 out of 10.