Vulnerability-Lookup

GHSA-M7CQ-H27P-HWP4

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

Details

proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened).

This issue was fixed in version 9.4.3.90.

Severity

4.6 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-57916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-73"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-27T12:16:46Z",
    "severity": "MODERATE"
  },
  "details": "proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim.\u00a0When the victim opens the document in the application, the specified file will be executed (or webpage will be opened).\n\nThis issue was fixed in version 9.4.3.90.",
  "id": "GHSA-m7cq-h27p-hwp4",
  "modified": "2026-07-27T12:31:17Z",
  "published": "2026-07-27T12:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57916"
    },
    {
      "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:A/VC:N/VI:L/VA:N/SC:N/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"
    }
  ]
}

CVE-2026-57916 (GCVE-0-2026-57916)

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

Title

Arbitrary Path Execution via CPS URI in proCertum SmartSign

Summary

Severity

4.6 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-73 - External Control of File Name or Path

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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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-57916",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-27T14:41:35.655566Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-27T14:41:43.080Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      ],
      "credits": [
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          "value": "Mariusz Maik"
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        }
      ],
      "impacts": [
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "attackVector": "LOCAL",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
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            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "LOW",
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            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      },
      "references": [
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          ],
          "url": "https://cert.pl/posts/2026/07/CVE-2026-57916"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
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    "datePublished": "2026-07-27T10:29:30.612Z",
    "dateReserved": "2026-06-26T10:47:10.593Z",
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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

GHSA-M7CQ-H27P-HWP4

CVE-2026-57916 (GCVE-0-2026-57916)

Tags

Sightings

Nomenclature