EUVD-2026-64521
GHSA-hpc2-mqfw-fq4q
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Network, unauthenticated object injection (AV:N/PR:N/UI:N), but impact depends on an external POP chain being present, an attack condition that raises complexity to AC:H; full C/I/A when a gadget exists.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
PHP Object Injection in the WS Form LITE contact form plugin for WordPress (all versions through 1.10.80) lets unauthenticated attackers instantiate arbitrary PHP objects by supplying serialized data in form-submission meta values, which the plugin deserializes without validation. The plugin ships no exploitable POP (property-oriented programming) chain of its own, so on a default install the injection has no direct impact; real damage - arbitrary file deletion, sensitive-data disclosure, or code execution - occurs only when a separate plugin or theme on the same site provides a usable gadget chain. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target WordPress site have at least one OTHER installed plugin or theme that provides a usable PHP POP (gadget) chain - WS Form LITE alone contains none, so on a clean install the injection has no impact. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals conflict and must be read together. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upstream fix available (WordPress plugin SVN changeset 3489609); a released patched version above 1.10.80 is not independently confirmed from the provided data, so update WS Form LITE to the latest available version from the WordPress plugin repository as the primary remediation and verify the installed version is newer than 1.10.80. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all WordPress instances running WS Form LITE version 1.10.80 or earlier and document their plugin/theme configurations. …
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External POC / Exploit Code
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