What is CVE-2017-1000160?

CVE-2017-1000160 is a medium-severity vulnerability in Expressionengine, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-11-17.

How severe is CVE-2017-1000160?

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

XSS in Expressionengine

CVE-2017-1000160

EllisLab ExpressionEngine 3.4.2 is vulnerable to cross-site scripting resulting in PHP code injection

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-11-17 · 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: 0.005 (41.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Expressionengine — versions 3.4.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

docs.expressionengine.com/latest/about/changelog.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2017-1000160?: CVE-2017-1000160 is a medium-severity vulnerability in Expressionengine, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-11-17.
How severe is CVE-2017-1000160?: Medium severity. CVSS v3 base score is 5.4 out of 10.