CVE-2026-57916: CWE-73 External Control of File Name or Path in Asseco proCertum SmartSign
proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened). This issue was fixed in version 9.4.3.90.
CVE-2026-57916: CWE-73 External Control of File Name or Path in Asseco proCertum SmartSign
Description
proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened). This issue was fixed in version 9.4.3.90.
CVSS v4.0
Score 4.6medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-06-26T10:47:10.593Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a673f8f9c2644c7f8f0f16b
Added to database: 07/27/2026, 11:22:55 UTC
Last updated: 07/27/2026, 12:11:30 UTC
Views: 4
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