CVE-2024-13784
Critical · CVSS 9.8Published 2026-08-16
CVSS
9.8
Critical
EPSS
0.5%
exploit probability
Active Exploit
No
not yet listed
What is CVE-2024-13784?
The Contact Form, Survey, Quiz & Popup Form Builder – ARForms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8.5 via deserialization of untrusted input from form submissions. 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.
CVSS Score Explained
CVSS 9.8 is Critical — the highest severity tier. Attackers can likely exploit this remotely with no authentication and cause full system compromise. Patch immediately.
EPSS Exploitation Probability
EPSS 0.5% — low probability of active exploitation. Can be handled in normal patch cycles.
References & Patches
- ›https://wordpress.org/plugins/arforms-form-builder/
- ›https://www.wordfence.com/threat-intel/vulnerabilities/id/5e0116d6-91c3-4212-9c68-6b706ab09768?source=cve
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