CRMEB through 6.0.0 Unauthorized Message Modification via edit_message

{
  "id": "b3b835b9ace116991a3dc230902aff59ae1e1f2224de2d9460bbfecba77179c1",
  "url": "https://osv.dev/vulnerability/CVE-2026-85177",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CRMEB through 6.0.0 Unauthorized Message Modification via edit_message",
    "summary": "CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including is_del, look, and uid to delete, mark read, or reassign victim notifications without authorization.",
    "evidence": "osv:CVE-2026-85177",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-85177",
      "aliases": [
        "CVE-2026-85177"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/crmeb/crmeb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e9d6c4675dc86501c21cdb9ee83e8b62e4b25afc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.0.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.0.0",
            "v5.6.3.1",
            "v5.6.1",
            "v5.4.0",
            "v5.3.0",
            "v5.2.0",
            "v4.7.0",
            "v4.6.0",
            "v4.4.4",
            "v4.4.2",
            "v2.6.0",
            "v2.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85177.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.844382930Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85177.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85177",
        "https://www.vulncheck.com/advisories/crmeb-through-6.0.0-unauthorized-message-modification-via-edit-message",
        "https://github.com/crmeb/CRMEB/issues/120",
        "https://github.com/crmeb/CRMEB",
        "https://github.com/crmeb/CRMEB/blob/v6.0.0/crmeb/app/api/controller/v1/user/MessageSystemController.php"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85177.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85177",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489170,
  "published_at": "2026-09-03T14:12:16.997+00:00"
}