CVE-2026-4703
WS Form LITE <= 1.10.80 - Unauthenticated PHP Object Injection via Form Submission
- State
- Published
- Severity
- 9.8 Critical
- Published
- Aug 22, 2026
- Updated
- Aug 24, 2026
- Reserved
- Mar 23, 2026
Description
The WS Form LITE – Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.10.80 via deserialization of untrusted input from form submission meta values. 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Wordfence |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
WS Form LITE – Drag & Drop Contact Form Builderwestguard |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/df36eae9-6f2b-432c-a765-57450939b344?source=cve
- https://plugins.trac.wordpress.org/browser/ws-form/trunk/includes/core/class-ws-form-submit.php#L1061
- https://plugins.trac.wordpress.org/browser/ws-form/trunk/includes/class-ws-form-common.php#L7154
- https://plugins.trac.wordpress.org/changeset/3489609/
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.