CVE-2026-57917
Improper Restriction of XML External Entity Reference in proCertum SmartSign
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Reserved
- Jun 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | CERT-PL |
Weaknesses
- CWE-611 Improper Restriction of XML External Entity Reference
Affected Products
| Product | Versions |
|---|---|
proCertum SmartSignAsseco |
|
References
- https://cert.pl/posts/2026/07/CVE-2026-57916third-party-advisory
- https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/product
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