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No exploitation reportedFix available

CVE-2016-8899

No exploitation reported by the sources we read.

  • Published2019-05-23
  • WeaknessCWE-74

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Exponent CMS version 2.3.9 suffers from a Object Injection vulnerability in framework/modules/core/controllers/expCatController.php related to change_cats.

Timeline

dates in UTC
  1. 2019-05-2319:29CVE publishedNVD

Versions per branch

NVD
Exponentcms exponent cms
BranchAffectedFixed in
2.3= 2.3.9no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-05-23
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-674r-wf6w-rpj5

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 2026-11-08, 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), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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