CVE-2016-9021
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
CVE-2016-9021 is a critical vulnerability (CVSS 9.8) in Exponentcms Exponent Cms, published December 31, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. No source names a fixed version.
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
- Record
CVE-2016-9021- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
- Record
CVE-2016-9021- Updated
- 2026-11-02
EUVDEUVD-2016-9843 No score
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
- Record
EUVD-2016-9843- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cwv7-82qm-9wqw No score
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
- Record
GHSA-cwv7-82qm-9wqw- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Exponent CMS before 2.6.0 has improper input validation in storeController.php.
- Record
CVE-2016-9021- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |