CVE-2026-65883 PUBLISHED

Joomla Extension - aimy-extensions.com - RCE via PHP object injection in Aimy Captcha-Less Form Guard 18.0 - 20.0

Assigner: Joomla
Reserved: 23.07.2026 Published: 29.07.2026 Updated: 29.07.2026

Joomla Extension - aimy-extensions.com - RCE via PHP object injection in Aimy Captcha-Less Form Guard 18.0 - 20.0 - A forged clfgd field allows PHP objection injection and thereby remote code execution.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 10

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	aimy-extensions.com
Product	Aimy Captcha-Less Form Guard plugin for Joomla
Versions	Default: unaffected Version 18.0-20.0 is affected

References

https://www.aimy-extensions.com/joomla/captcha-less-form-guard.html

Problem Types

CWE-502 Deserialization of Untrusted Data CWE

Impacts

CAPEC-586: Object Injection