CVE-2019-25729 PDF Signer 3.0 Server-Side Template Injection RCE via CSRF Cookie
Unauthenticated attackers can execute arbitrary code and read sensitive data via server-side template injection in the CSRF cookie.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25729?
CVE-2019-25729 is a critical code injection vulnerability in simcy_creative PDF Signer, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-352
Which versions are affected by CVE-2019-25729?
How do I fix CVE-2019-25729?
No fix has been published for CVE-2019-25729 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2019-25729 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25729 exists.
Sources
Also known as GHSA-7j94-5v5j-mw57.