What’s Vulnerable › Vulnerabilities

CVE-2019-15780

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-29 · updated 2026-06-17
• Weakness: CWE-502

Description

The formidable plugin before 4.02.01 for WordPress has unsafe deserialization.

Affected products

• strategy11team Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder: before 4.02.01 — fixed in 4.02.01

How to fix

Upgrade to a fixed version: strategy11team Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder 4.02.01. Check the vendor advisory for mitigations.

References

• https://pentest.co.uk/labs/advisory/cve-2019-15780/
• https://raw.githubusercontent.com/Strategy11/formidable-forms/master/changelog.txt
• https://wordpress.org/plugins/formidable/#developers
• https://wpvulndb.com/vulnerabilities/9935
• https://pentest.co.uk/labs/advisory/cve-2019-15780/
• https://raw.githubusercontent.com/Strategy11/formidable-forms/master/changelog.txt
• https://wordpress.org/plugins/formidable/#developers
• https://wpvulndb.com/vulnerabilities/9935

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