Vulnerability-Lookup

GHSA-XCM3-8JR8-4M46

Vulnerability from github – Published: 2026-07-23 12:32 – Updated: 2026-07-23 12:32

Details

Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.

Severity

8.8 (High)


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

8.7 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-65897"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-23T12:18:48Z",
    "severity": "HIGH"
  },
  "details": "Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.",
  "id": "GHSA-xcm3-8jr8-4m46",
  "modified": "2026-07-23T12:32:30Z",
  "published": "2026-07-23T12:32:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65897"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/commit/345e79e3abf8c15f80e612a09f6643300071324b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/commit/f9438d4e71389b1041ac60b69b0b5714ecfa3bdd"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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-2026-65897 (GCVE-0-2026-65897)

Vulnerability from cvelistv5 – Published: 2026-07-23 11:42 – Updated: 2026-07-24 21:35

Title

Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups

Summary

Severity

8.7 (High)


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

8.8 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-269 - Improper Privilege Management

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/getgrav/grav/security/advisori…	vendor-advisory
https://github.com/getgrav/grav/commit/f9438d4e71…	patch
https://github.com/getgrav/grav/commit/345e79e3ab…	patch
https://www.vulncheck.com/advisories/grav-api-plu…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
getgrav	grav	Affected: 0 , < 1.0.10 (semver) Unaffected: 1.0.10 (semver)

Date Public

2026-07-09 00:00

Credits

izumi-hyun

Show details on NVD website

JSON

To clipboard

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  "containers": {
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                "id": "CVE-2026-65897",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-23T15:24:56.000746Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-07-23T15:26:05.842Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        "references": [
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            "tags": [
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            "url": "https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
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    "datePublished": "2026-07-23T11:42:17.453Z",
    "dateReserved": "2026-07-23T11:03:13.092Z",
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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-XCM3-8JR8-4M46

CVE-2026-65897 (GCVE-0-2026-65897)

Tags

Sightings

Nomenclature