What is CVE-2015-8376?

CVE-2015-8376 is a medium-severity vulnerability in Getsymphony Symphony, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-01-08.

How severe is CVE-2015-8376?

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

XSS in Getsymphony Symphony

CVE-2015-8376

Multiple cross-site scripting (XSS) vulnerabilities in Symphony CMS 2.6.3 allow remote attackers to inject arbitrary web script or HTML via the (1) Name, (2) Navigation Group, or (3) Label parameter to blueprints/sections/edit/1.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-01-08 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.009 (59.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Getsymphony Symphony — versions 2.6.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

seclists.org/fulldisclosure/2015/Dec/101 (mailing-list, Exploit)
seclists.org/fulldisclosure/2015/Dec/7 (mailing-list, Exploit)

Frequently asked questions

What is CVE-2015-8376?: CVE-2015-8376 is a medium-severity vulnerability in Getsymphony Symphony, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-01-08.
How severe is CVE-2015-8376?: Medium severity. CVSS v3 base score is 6.1 out of 10.