Vulnerability-Lookup

GHSA-8666-8WPQ-7C9Q

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33

Details

Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user's company.

Severity

8.6 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-19433"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T15:17:43Z",
    "severity": "HIGH"
  },
  "details": "Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact\u0027s personal data as a vCard via the contact\u0027s numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user\u0027s company.",
  "id": "GHSA-8666-8wpq-7c9q",
  "modified": "2026-08-10T15:33:52Z",
  "published": "2026-08-10T15:33:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19433"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Roskus/prospero-flow-crm/commit/f16b4af2027b17bef7c604c92dbd86cf38082398"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3"
    },
    {
      "type": "WEB",
      "url": "https://secur0.com/en/cna/cve-list/cve-2026-19433-idor-in-prospero-flow-crm-contact-save-and-vcard-export"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/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-2026-19433 (GCVE-0-2026-19433)

Vulnerability from cvelistv5 – Published: 2026-08-10 14:04 – Updated: 2026-08-10 17:53 X_Open Source

Title

Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export

Summary

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-10 17:53 UTC

CWE

CWE-639 - Authorization bypass through User-Controlled key

Assigner

Secur0

References

3 references

URL	Tags
https://github.com/Roskus/prospero-flow-crm/commi…	patch
https://github.com/Roskus/prospero-flow-crm/relea…	release-notes
https://secur0.com/en/cna/cve-list/cve-2026-19433…	technical-description

Impacted products

1 product

Vendor	Product	Version
Roskus	Prospero Flow CRM	Affected: 0 , < 5.4.8 (semver)

Date Public

2026-08-10 13:54

Credits

Darío Rivas Quero Alejandro Gutiérrez López Cristian Fernández Cornejo Xoán M. Otero Jorge Secur0 CNA Gustavo Novaro

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JSON

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                  },
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                "timestamp": "2026-08-10T17:53:24.253600Z",
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            "app/Repositories/ContactRepository.php",
            "app/Http/Controllers/Contact/ContactExportVCard.php"
          ],
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      ],
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            {
              "base64": false,
              "type": "text/html",
              "value": "Upgrade to version 5.4.8 or higher."
            }
          ],
          "value": "Upgrade to version 5.4.8 or higher."
        }
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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-8666-8WPQ-7C9Q

CVE-2026-19433 (GCVE-0-2026-19433)

Tags

Sightings

Nomenclature