CVE-2019-25729Public exploitNetwork attack vector

Unauthenticated code execution via CSRF cookie template injection

Published Jun 4, 2026 · Updated Jun 4, 2026

Server-side template injection in Simcy Creative PDF Signer 3.0 allows remote attackers to execute arbitrary code through a crafted cookie. The application renders the CSRF-TOKEN cookie as a template without neutralizing template expressions, causing embedded PHP functions such as shell_exec() to run. No authentication or user interaction is required; commands run with web-server process privileges, and their output appears in the response.

CVSS severity9.3
Critical
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Simcy Creative PDF Signer 3.0 allows remote attackers to execute arbitrary code through a crafted cookie. The application renders the CSRF-TOKEN cookie as a template without neutralizing template expressions, causing embedded PHP functions such as shell_exec() to run. No authentication or user interaction is required; commands run with web-server process privileges, and their output appears in the response.

The record

CVE
CVE-2019-25729
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Simcy Creative
Product
PDF Signer
Classifications
CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Simcy Creative · PDF Signerversion=3.0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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