CVE-2016-9182
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.,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.41% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- exponentcms/exponent cms
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.