What is CVE-2017-8876?

CVE-2017-8876 is a medium-severity vulnerability in Getsymphony Symphony, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-05-10.

How severe is CVE-2017-8876?

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

XSS in Getsymphony Symphony

CVE-2017-8876

Symphony 2 2.6.11 has XSS in the meta[navigation_group] parameter to content/content.blueprintssections.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-05-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Getsymphony Symphony — versions 2.6.11

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/DeuxHuitHuit/symphony-2/commit/cd69a2a516e6503c1a1c7e097ee90d255ec3d… (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-8876?: CVE-2017-8876 is a medium-severity vulnerability in Getsymphony Symphony, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-05-10.
How severe is CVE-2017-8876?: Medium severity. CVSS v3 base score is 6.1 out of 10.