CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Exponent CMS version 2.3.9 suffers from a Object Injection vulnerability in framework/modules/core/controllers/expCatController.php related to change_cats.
Technical details
- Published
- 2019-05-23
Frequently asked questions
What is CVE-2016-8899?
Exponent CMS version 2.3.9 suffers from a Object Injection vulnerability in framework/modules/core/controllers/expCatController.php related to change_cats.
Is CVE-2016-8899 actively exploited?
Active exploitation of CVE-2016-8899 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2016-8899?
CVE-2016-8899 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2016-8899 affecting your environment?
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