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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS probability
- 0.52%
- CWE
- CWE-502
- Published
- 2026-08-16
- Last modified
- 2026-08-17
Affected products
- reputeinfosystems Contact Form, Survey, Quiz & Popup Form Builder – ARForms
Weakness type
Related vulnerabilities
- CVE-2026-87719 — Deserialization of Untrusted Data in GitLab
- CVE-2026-72649 — Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
- CVE-2026-82222 — WordPress GiveWP plugin <= 4.16.7.1 - Remote Code Execution (RCE) vulnerability
- CVE-2026-70416 — Dell ObjectScale, versions prior to 4.4.0.0, contains a Deserialization of Untrusted Data vulnerability. An unauthentica
- CVE-2026-17061 — Deserialization of Untrusted Data Vulnerability in SIMULIA Execution Engine from Release 2023 through Release 2026
- CVE-2026-4703 — WS Form LITE <= 1.10.80 - Unauthenticated PHP Object Injection via Form Submission
- CVE-2026-20307 — Cisco Identity Services Engine Remote Code Execution Vulnerability
- CVE-2026-12650 — A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated