CVE-2019-25729

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 v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0026

Probability of exploitation

0.17%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-352 Cross-Site Request Forgery

References

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2019-25729? +

CVE-2019-25729 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0026, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2019-25729? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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