What’s Vulnerable › Vulnerabilities

CVE-2021-24790: Contact Form Advanced Database <= 1.0.8 - Unauthorised AJAX Calls

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-13 · updated 2026-06-17
• Weakness: CWE-862

Description

The Contact Form Advanced Database WordPress plugin through 1.0.8 does not have any authorisation as well as CSRF checks in its delete_cf7_data and export_cf7_data AJAX actions, available to any authenticated users, which could allow users with a role as low as subscriber to call them. The delete_cf7_data would lead to arbitrary metadata deletion, as well as PHP Object Injection if a suitable gadget chain is present in another plugin, as user data is passed to the maybe_unserialize() function without being first validated.

Affected products

• Contact Form Advanced Database: through 1.0.8

References

• https://wpscan.com/vulnerability/adc5dd9b-0781-4cea-8cc5-2c10ac35b968
• https://wpscan.com/vulnerability/adc5dd9b-0781-4cea-8cc5-2c10ac35b968

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