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.
Severity (CVSS)
| Base score | 4.8 |
|---|---|
| Severity | Medium |
| Version | CVSS 4.0 |
| 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 |
| Provided by | CNA |
Weaknesses
- CWE-611 — CWE-611 Improper Restriction of XML External Entity Reference
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Asseco | proCertum SmartSign | 0 to <9.4.3.90 |
References
- https://cert.pl/posts/2026/07/CVE-2026-57916 (third-party-advisory)
- https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/ (product)
Generated from the official CVE List on 28 Jul 2026 07:03 UTC.