Vulnerability-Lookup

CVE-2026-77767 (GCVE-0-2026-77767)

Vulnerability from cvelistv5 – Published: 2026-08-21 11:05 – Updated: 2026-08-21 13:51

Title

Reconmap Report Preview Endpoint Is Marked AllowAnonymous, Exposing Every Project and Client Organisation Without Authentication

Summary

Reconmap's API applies a fallback authorization policy in apps/api/app/Program.cs that requires an authenticated user holding the administrator role, so controllers without their own attribute reject anonymous callers. The report preview action in apps/api/app/Controllers/ReportsController.cs carries [AllowAnonymous] and therefore opts out of that policy. PreviewReport loads the Project row named by the id path segment, loads the linked Organisation through the project's ClientId, and renders both into default-report-template.html, which prints the project name and description together with the client organisation's name, address and URL. No authentication, project membership or role check is performed. Because the id is the auto-increment primary key of the project table, an unauthenticated remote caller can walk sequential ids to retrieve the engagement details and client organisation of every project on the instance, and the 404 returned for a missing id reveals which project ids exist. Reconmap stores penetration-testing engagements, so the disclosed descriptions and client records are sensitive by nature.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

8.7 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 13:50 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/reconmap/reconmap/security/adv…	vendor-advisory
https://github.com/reconmap/reconmap/blob/56ca374…	technical-description
https://github.com/reconmap/reconmap/blob/56ca374…	technical-description
https://github.com/reconmap/reconmap/commit/2b2eb…	patch
https://github.com/reconmap/reconmap	product
https://www.vulncheck.com/advisories/reconmap-rep…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
reconmap	reconmap	Affected: 0 , ≤ 3.2.2 (semver)	guessed

Date Public

2026-08-20 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-77767

Vulnerability from fkie_nvd - Published: 2026-08-21 11:17 - Updated: 2026-08-21 14:16

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/reconmap/reconmap
	disclosure@vulncheck.com	https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Controllers/ReportsController.cs
	disclosure@vulncheck.com	https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Program.cs
	disclosure@vulncheck.com	https://github.com/reconmap/reconmap/commit/2b2eb0cf0aa95726b4edd0045f86d2dcdb8de34d
	disclosure@vulncheck.com	https://github.com/reconmap/reconmap/security/advisories/GHSA-mhrh-jfmr-8mmw
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/reconmap-report-preview-endpoint-is-marked-allowanonymous-exposing-every-project-and-client-organisation-without-authentication
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/reconmap/reconmap/security/advisories/GHSA-mhrh-jfmr-8mmw

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "reconmap",
          "programFiles": [
            "apps/api/app/Controllers/ReportsController.cs",
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    }
  ],
  "id": "CVE-2026-77767",
  "lastModified": "2026-08-21T14:16:53.773",
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          "confidentialityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77767",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-21T13:50:48.737939Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T11:17:07.107",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/reconmap/reconmap"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Controllers/ReportsController.cs"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Program.cs"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/reconmap/reconmap/commit/2b2eb0cf0aa95726b4edd0045f86d2dcdb8de34d"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/reconmap/reconmap/security/advisories/GHSA-mhrh-jfmr-8mmw"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/reconmap-report-preview-endpoint-is-marked-allowanonymous-exposing-every-project-and-client-organisation-without-authentication"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/reconmap/reconmap/security/advisories/GHSA-mhrh-jfmr-8mmw"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-5R22-JFV5-3CPG

Vulnerability from github – Published: 2026-08-21 12:30 – Updated: 2026-08-21 12:30

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

8.7 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-77767"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-21T11:17:07Z",
    "severity": "HIGH"
  },
  "details": "Reconmap\u0027s API applies a fallback authorization policy in apps/api/app/Program.cs that requires an authenticated user holding the administrator role, so controllers without their own attribute reject anonymous callers. The report preview action in apps/api/app/Controllers/ReportsController.cs carries [AllowAnonymous] and therefore opts out of that policy. PreviewReport loads the Project row named by the id path segment, loads the linked Organisation through the project\u0027s ClientId, and renders both into default-report-template.html, which prints the project name and description together with the client organisation\u0027s name, address and URL. No authentication, project membership or role check is performed. Because the id is the auto-increment primary key of the project table, an unauthenticated remote caller can walk sequential ids to retrieve the engagement details and client organisation of every project on the instance, and the 404 returned for a missing id reveals which project ids exist. Reconmap stores penetration-testing engagements, so the disclosed descriptions and client records are sensitive by nature.",
  "id": "GHSA-5r22-jfv5-3cpg",
  "modified": "2026-08-21T12:30:33Z",
  "published": "2026-08-21T12:30:33Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/reconmap/reconmap/security/advisories/GHSA-mhrh-jfmr-8mmw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77767"
    },
    {
      "type": "WEB",
      "url": "https://github.com/reconmap/reconmap/commit/2b2eb0cf0aa95726b4edd0045f86d2dcdb8de34d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/reconmap/reconmap"
    },
    {
      "type": "WEB",
      "url": "https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Controllers/ReportsController.cs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/reconmap/reconmap/blob/56ca3748343a50c98185d53827172d8f13a6ad0f/apps/api/app/Program.cs"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/reconmap-report-preview-endpoint-is-marked-allowanonymous-exposing-every-project-and-client-organisation-without-authentication"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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"
    }
  ]
}

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

CVE-2026-77767 (GCVE-0-2026-77767)

FKIE_CVE-2026-77767

GHSA-5R22-JFV5-3CPG

Tags

Sightings

Nomenclature