CVE-2019-25729
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
PDF Signer 3.0 contains a server-side template injection vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting PHP commands through the CSRF-TOKEN cookie parameter. Attackers can craft malicious cookie values containing template injection payloads like shell_exec() to execute system commands and retrieve sensitive information.
Risk Assessment
An unauthenticated attacker can remotely execute arbitrary code on the server, leading to full system compromise and sensitive data exposure.
Recommendation
Upgrade PDF Signer to a patched version or apply the necessary security fixes immediately.
Original NVD description (English source)
PDF Signer 3.0 contains a server-side template injection vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting PHP commands through the CSRF-TOKEN cookie parameter. Attackers can craft malicious cookie values containing template injection payloads like shell_exec() to execute system commands and retrieve sensitive information from the server.