What is CVE-2019-25729?

CVE-2019-25729 is a critical-severity vulnerability in Simcy Creative Pdf Signer, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.8/10. Published 2026-06-04.

How severe is CVE-2019-25729?

Critical severity. CVSS v3 base score is 9.8 out of 10.

CSRF in Simcy Creative Pdf Signer

CVE-2019-25729

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.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2026-06-04 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Simcy Creative Pdf Signer — versions 3.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

www.exploit-db.com/exploits/46276 (exploit)
codecanyon.net/user/simcy_creative (product)
codecanyon.net/item/signer-create-digital-signatures-and-sign-pdf-documents-onl… (product)
www.vulncheck.com/advisories/pdf-signer-server-side-template-injection-rce-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2019-25729?: CVE-2019-25729 is a critical-severity vulnerability in Simcy Creative Pdf Signer, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.8/10. Published 2026-06-04.
How severe is CVE-2019-25729?: Critical severity. CVSS v3 base score is 9.8 out of 10.