Vulnerability-Lookup

CVE-2026-57917 (GCVE-0-2026-57917)

Vulnerability from cvelistv5 – Published: 2026-07-27 10:29 – Updated: 2026-07-27 14:41

Title

Improper Restriction of XML External Entity Reference in proCertum SmartSign

Summary

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

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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-611 - Improper Restriction of XML External Entity Reference

Assigner

CERT-PL

References

2 references

URL	Tags
https://cert.pl/posts/2026/07/CVE-2026-57916	third-party-advisory
https://pomoc.certum.pl/pl/oprogramowanie/procert…	product

Impacted products

1 product

Vendor	Product	Version
Asseco	proCertum SmartSign	Affected: 0 , < 9.4.3.90 (semver)

Credits

Mariusz Maik

Show details on NVD website

JSON

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GHSA-FQFW-HF3F-2Q4C

Vulnerability from github – Published: 2026-07-27 12:31 – Updated: 2026-07-27 12:31

Details

This issue was fixed in version 9.4.3.90.

Severity

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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-57917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-27T12:16:46Z",
    "severity": "MODERATE"
  },
  "details": "proCertum SmartSign\u00a0parses external XML entities from arbitrary crafted signature files, enabling SSRF and potentially allowing the reading of local files, depending on the parser\u0027s configuration. The XML External Entity (XXE) vulnerability is triggered simply by previewing a file in the file selection window, before the victim clicks \u201cOpen\u201d.\n\nThis issue was fixed in version 9.4.3.90.",
  "id": "GHSA-fqfw-hf3f-2q4c",
  "modified": "2026-07-27T12:31:17Z",
  "published": "2026-07-27T12:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57917"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/posts/2026/07/CVE-2026-57916"
    },
    {
      "type": "WEB",
      "url": "https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-57917 (GCVE-0-2026-57917)

GHSA-FQFW-HF3F-2Q4C

Tags

Sightings

Nomenclature