CVE-2016-9182

Name: CVE-2016-9182
Creator: NVD / NIST
Published: 2016-11-04T10:59:01.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.41%

Last modified Jun 17, 2026

CVE-2016-9182 is a vulnerability of currently unknown severity. Exponent CMS 2.4 uses PHP reflection to call a method of a controller class, and then uses the method name to check user permission. But, the method name in PHP reflection is case insensitive, and Exponent CMS permits undefined actions to execute by default, so an attacker can use a capitalized method name to bypass the permission check, e.g., controller=expHTMLEditor&action=preview&editor=ckeditor and controller=expHTMLEditor&action=Preview&editor=ckeditor. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

Description

Exponent CMS 2.4 uses PHP reflection to call a method of a controller class, and then uses the method name to check user permission. But, the method name in PHP reflection is case insensitive, and Exponent CMS permits undefined actions to execute by default, so an attacker can use a capitalized method name to bypass the permission check, e.g., controller=expHTMLEditor&action=preview&editor=ckeditor and controller=expHTMLEditor&action=Preview&editor=ckeditor. An anonymous user will be rejected for the former but can access the latter.

Metrics

EPSS Probability

1.41%

69.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Exponentcms	Exponent Cms	2.4.0

References

http://www.securityfocus.com/bid/94227Third Party Advisory
https://github.com/exponentcms/exponent-cms/commit/684d79424f768db8bb345d5c68aa2a886239492bIssue Tracking, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94227Third Party Advisory
https://github.com/exponentcms/exponent-cms/commit/684d79424f768db8bb345d5c68aa2a886239492bIssue Tracking, Patch, Third Party Advisory

Timeline

Published: Nov 4, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9182?

How severe is CVE-2016-9182?

Severity scoring for CVE-2016-9182 is pending analysis. The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9182?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9182?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST