CVE-2026-57917

Improper Restriction of XML External Entity Reference in proCertum SmartSign

Published Jul 27, 2026 CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
proCertum SmartSign parses external XML entities from arbitrary crafted signature files, enabling SSRF and potentially allowing the reading of local files, depending on the parser's configuration. The XML External Entity (XXE) vulnerability is triggered simply by previewing a file in the file selection window, before the victim clicks “Open”.

This issue was fixed in version 9.4.3.90.

Remediation

No solution or workaround provided in the CVE record

Tracking

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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 parses external XML entities from arbitrary crafted signature files, enabling SSRF and potentially allowing the reading of local files, depending on the parser's configuration. The XML External Entity (XXE) vulnerability is triggered simply by previewing a file in the file selection window, before the victim clicks “Open”. This issue was fixed in version 9.4.3.90.
Title Improper Restriction of XML External Entity Reference in proCertum SmartSign
Weaknesses CWE-611
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/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