What is CVE-2016-8897?

CVE-2016-8897 is a critical-severity vulnerability in Exponentcms Exponent Cms, classified under SQL Injection. CVSS score: 9.8/10. Published 2019-05-23.

How severe is CVE-2016-8897?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Exponentcms Exponent Cms

CVE-2016-8897

Exponent CMS version 2.3.9 suffers from a sql injection vulnerability in framework/modules/help/controllers/helpController.php.

Vulnerability class: SQL Injection

Published 2019-05-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Exponentcms Exponent Cms — versions 2.3.9

Weakness classification (CWE)

CWE-89 — SQL Injection

References

www.openwall.com/lists/oss-security/2016/09/30/5 (Exploit, Mailing List, Third Party Advisory)
github.com/exponentcms/exponent-cms/commit/fdafb5ec97838e4edbd685f587f28d3174eb… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2016-8897?: CVE-2016-8897 is a critical-severity vulnerability in Exponentcms Exponent Cms, classified under SQL Injection. CVSS score: 9.8/10. Published 2019-05-23.
How severe is CVE-2016-8897?: Critical severity. CVSS v3 base score is 9.8 out of 10.