Vulnerability · Published Jul 29, 2026 · Assigned by Joomla
CVE-2026-65883Joomla Extension - aimy-extensions.com - RCE via PHP object injection in Aimy Captcha-Less Form Guard 18.0 - 20.0
Critical 10.0
In plain English
A critical-severity unsafe deserialization in Aimy Captcha-Less Form Guard plugin for Joomla from aimy-extensions.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| aimy-extensions.com | Aimy Captcha-Less Form Guard plugin for Joomla | 18.0-20.0 |
Weakness: CWE-502 · 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