SQL Injection in WordPress Contact Form 7 Database Addon Cfdb7 By Arshid

CVE-2025-4665

WordPress plugin Contact Form CFDB7 versions up to and including 1.3.2 are affected by a pre-authentication SQL injection vulnerability that cascades into insecure deserialization (PHP Object Injection). The weakness arises due to insufficient validation of user input in plugin endpoints, allowing crafted input to influence backend queries in unexpected ways. Using specially crafted payloads, this can escalate into unsafe deserialization, enabling arbitrary object injection in PHP. Although the issue is remotely exploitable without authentication, it does require a crafted interaction with the affected endpoint in order to trigger successfully.

Vulnerability class: SQL Injection

EPSS: 0.003 (23.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-4665?
CVE-2025-4665 is a critical-severity vulnerability in WordPress Contact Form 7 Database Addon Cfdb7 By Arshid, classified under SQL Injection. CVSS score: 9.6/10. Published 2025-10-29.
How severe is CVE-2025-4665?
Critical severity. CVSS v3 base score is 9.6 out of 10.