CVE-2019-25729
CVE-2019-25729 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 9.3
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2019-20165
- Weakness: CWE-352
- Published:
- Last modified:
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.
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.
- How severe is CVE-2019-25729?
- CVE-2019-25729 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-25729 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2019-25729?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2019-25729 have an EU (EUVD) identifier?
- Yes. CVE-2019-25729 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20165.
- When was CVE-2019-25729 published?
- CVE-2019-25729 was published on 2026-06-04 and last updated on 2026-06-17.
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
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