CVE-2019-25729
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductPDF Signer
PublishedJun 4, 2026
First seenJun 4, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| simcy_creative PDF Signer | 3.0 | — |
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