CVE-2026-2599 CRITICAL

CVE-2026-2599: Database for Contact Form 7, WPforms, Elementor forms <= 1.4.7 - Unauthenticated PHP Object Injection via 'download_csv'

Vendor Crmperks
Product Database for Contact Form 7, WPforms, Elementor forms
Weakness CWE-502 · Unsafe deserialization
Published March 5, 2026
Last update April 8, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

Description

The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.4.7 via deserialization of untrusted input in the 'download_csv' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Key dates

Disclosure timeline

March 5, 2026 CVE published
April 8, 2026 Record updated