CVE-2019-25729 | PDF Signer 3.0 contains a server-side template injection vul… | CVSS 9.8 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.

Metadata

CVE ID: CVE-2019-25729
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-04 10:52 UTC
Published: 2026-06-04 13:22 UTC
Last updated: 2026-06-04 14:01 UTC
Primary CWE: CWE-352
Cross-Site Request Forgery (CSRF)
Vendor / Product: simcy_creative / PDF Signer
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
simcy_creative	PDF Signer	—	3.0

Weakness (CWE)

CWE	Source	Description
CWE-352	cna	Cross-Site Request Forgery (CSRF)

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	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

References (4)

ExploitDB-46276 https://www.exploit-db.com/exploits/46276
Official Product Homepage https://codecanyon.net/user/simcy_creative
Product Reference https://codecanyon.net/item/signer-create-digital-signatures-and-sign-pdf-documents-online/20737707
VulnCheck Advisory: PDF Signer 3.0 Server-Side Template Injection RCE via CSRF Cookie https://www.vulncheck.com/advisories/pdf-signer-server-side-template-injection-rce-via-csrf-cookie