CVE-2026-77136
Extension "powermail"90/100
exploitation likelihood
CVSS9.5
EPSS0.6%
VulnCheck KEVEXPLOITED
The extension passes the raw value of a form field configured as "This field contains the name of the sender" directly into a Fluid View as template source, without any sanitization, and renders it. An anonymous, unauthenticated user can submit Fluid template syntax in that field to execute arbitrary Fluid ViewHelpers leading to disclosure of server configuration, environment variables and application source, and potentially remote code execution. Exploitation requires only that a form field is
Listed in VulnCheck KEV (confirmed exploited in the wild) · CVSS base 9.5
Public PoC / Exploit
No public PoC/exploit references indexed yet (Exploit-DB / nuclei). Newly-disclosed CVEs often have none — exploit publication lags disclosure.
References1