CVE-2023-1405
Formidable Forms < 6.2 - Unauthenticated PHP Object Injection
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
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
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
- Record
CVE-2023-1405- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List
Formidable Forms < 6.2 - Unauthenticated PHP Object Injection
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
- Record
CVE-2023-1405- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
EUVDEUVD-2023-23660
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
- Record
EUVD-2023-23660- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wfgq-9f7c-xcw5
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow...
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
- Record
GHSA-wfgq-9f7c-xcw5- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | RandomRobbieBF/CVE-2023-1405 | 2024-11-13 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-1405 is a high vulnerability (CVSS 7.5) in Strategy11 Formidable Forms, published January 16, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. No source names a fixed version.