CVE-2026-57916

Arbitrary Path Execution via CPS URI in proCertum SmartSign

Published Jul 27, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Asseco
Asseco procertum Smartsign
Vendors & Products Asseco
Asseco procertum Smartsign
Type Values Removed Values Added
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.
Title Arbitrary Path Execution via CPS URI in proCertum SmartSign
Weaknesses CWE-73
References
Metrics cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
Jul 27, 2026, 2:41 PM
Reserved
Jun 26, 2026, 10:47 AM
Status
Deferred
Published
Jul 27, 2026, 12:16 PM
Modified
Oct 24, 2026, 1:10 PM