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Vulnerability record · CVE-2019-25729 · published 4 June 2026

CVE-2019-25729: Cross-site request forgery vulnerability

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.

9.3 CVSS 4.0 Critical EPSS 0.26% · top 84.3% CWE-352 · Cross-site request forgery Deferred
9.3CVSS 4.0 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Jul 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://codecanyon.net/item/signer-create-digital-signatures-and-sign-pdf-documents-online/20737707
https://codecanyon.net/user/simcy_creative
https://www.exploit-db.com/exploits/46276
https://www.vulncheck.com/advisories/pdf-signer-server-side-template-injection-rce-via-csrf-cookie

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Source: NIST National Vulnerability Database (record CVE-2019-25729), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.