Cal.com

A stored cross-site scripting (XSS) vulnerability, CVE-2024-58355, affects Cal.com (calcom/cal.diy) versions through 4.7.15, allowing an attacker to inject arbitrary HTML/JavaScript into a booking-question label that executes in a victim's browser when they view a crafted booking URL, potentially leading to session hijacking, data theft, or defacement.

CVE-2024-58353 describes a cross-site scripting (XSS) vulnerability in Cal.com (repository calcom/cal.diy) versions up to and including 4.7.15, where an attacker can inject malicious HTML/JavaScript into booking question labels that is then executed via React's dangerouslySetInnerHTML when a victim visits a publicly accessible single booking view, allowing for arbitrary client-side code execution, particularly impacting self-hosted instances with open registration.

A critical repository takeover vulnerability (CVE-2024-58354) exists in the cal.com (calcom/cal.diy) GitHub Actions workflows, allowing an attacker to submit a malicious pull request that executes arbitrary commands with write permissions to the repository, leading to full compromise.