CVE-2026-57917: CWE-611 Improper Restriction of XML External Entity Reference in Asseco proCertum SmartSign
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.
CVE-2026-57917: CWE-611 Improper Restriction of XML External Entity Reference in Asseco proCertum SmartSign
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.
CVSS v4.0
Score 4.8medium
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: 6a673f8f9c2644c7f8f0f16f
Added to database: 07/27/2026, 11:22:55 UTC
Last updated: 07/27/2026, 12:07:16 UTC
Views: 3
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