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Vulnerability record · CVE-2023-1405 · published 16 January 2024

CVE-2023-1405: Strategy11 formidable forms deserialization of untrusted data vulnerability

Strategy11 · Formidable Forms

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.

7.5 CVSS 3.1 High EPSS 0.70% · top 48.6% CWE-502 · Deserialization of untrusted data
7.5CVSS 3.1 base score
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://wpscan.com/vulnerability/8c727a31-ff65-4472-8191-b1becc08192a/ ExploitThird Party Advisory
https://wpscan.com/vulnerability/8c727a31-ff65-4472-8191-b1becc08192a/ ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-1405), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.