Happyforms — Vulnerabilities & Security Advisories 3

Happyforms is a WordPress form builder plugin enabling users to create and manage custom forms for websites. Historically, the plugin has been susceptible to multiple security vulnerabilities, including cross-site scripting (XSS) and remote code execution (RCE) flaws, often stemming from insufficient input sanitization and improper access controls. The plugin has accumulated three CVEs, with one notable incident allowing unauthenticated attackers to execute arbitrary code due to a missing capability check. These vulnerabilities highlight ongoing security challenges in maintaining robust input validation and permission enforcement within WordPress plugins, potentially exposing websites to significant compromise if not promptly patched.