Vulnerability-Lookup

GHSA-F549-R4PW-JW3M

Vulnerability from github – Published: 2026-08-25 03:32 – Updated: 2026-08-25 03:32

Details

Grav Flex Objects plugin versions 1.4.0 through 1.4.7 contain an authorization bypass vulnerability in the flex-objects shortcode that allows users with page-edit access to render any registered Flex collection without permission checks. Attackers can place the shortcode in published pages to expose sensitive directory contents including user account information, bypassing the authorize ACL enforced in the admin panel.

Severity

7.7 (High)


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

8.3 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-56707"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T02:16:42Z",
    "severity": "HIGH"
  },
  "details": "Grav Flex Objects plugin versions 1.4.0 through 1.4.7 contain an authorization bypass vulnerability in the flex-objects shortcode that allows users with page-edit access to render any registered Flex collection without permission checks. Attackers can place the shortcode in published pages to expose sensitive directory contents including user account information, bypassing the authorize ACL enforced in the admin panel.",
  "id": "GHSA-f549-r4pw-jw3m",
  "modified": "2026-08-25T03:32:08Z",
  "published": "2026-08-25T03:32:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-x929-528m-vx2m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56707"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/grav-flex-objects-through-authorization-bypass-via-shortcode"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/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-2026-56707 (GCVE-0-2026-56707)

Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-27 14:50

Title

Grav Flex Objects 1.4.0 through 1.4.7 Authorization Bypass via Shortcode

Summary

Severity

8.3 (High)


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

7.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 14:50 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/getgrav/grav/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/grav-flex-ob…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
getgrav	grav	Affected: 0 , < 1.4.8 (semver) Unaffected: 1.4.8 (semver) cpe:2.3:a:getgrav:grav::::::::

Date Public

2026-08-10 00:00

Credits

alham-rizvi

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-56707",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T14:50:38.482786Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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              "version": "0",
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            },
            {
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              "version": "1.4.8",
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            }
          ]
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      ],
      "cpeApplicability": [
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                  "criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*",
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                }
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            }
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          "type": "reporter",
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        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
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            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "NONE",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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          "format": "CVSS"
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      },
      "references": [
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          "name": "GitHub Security Advisory (GHSA-x929-528m-vx2m)",
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          ],
          "url": "https://github.com/getgrav/grav/security/advisories/GHSA-x929-528m-vx2m"
        },
        {
          "name": "VulnCheck Advisory: Grav Flex Objects 1.4.0 through 1.4.7 Authorization Bypass via Shortcode",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/grav-flex-objects-through-authorization-bypass-via-shortcode"
        }
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    "datePublished": "2026-08-25T01:30:06.601Z",
    "dateReserved": "2026-06-22T18:48:27.060Z",
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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-F549-R4PW-JW3M

CVE-2026-56707 (GCVE-0-2026-56707)

Tags

Sightings

Nomenclature