GHSA-X2FP-HJ8C-MMXH中危已审查

Concrete CMS is vulnerable to authorization bypass in the Calendar Event Frontend Dialog

OSV 1.4.0 · github-reviewed · 修改于 2026-06-25 04:57

发布时间

2026-05-22 05:30

GitHub 审查时间

2026-06-25 02:12

NVD 发布时间

2026-05-22 05:16

源文件

advisories/github-reviewed/2026/05/GHSA-x2fp-hj8c-mmxh/GHSA-x2fp-hj8c-mmxh.json

公告说明

Concrete CMS 9.5.0 and below is vulnerable to authorization Bypass in the Calendar Event Frontend Dialog which can allow cross-calendar data disclosure. A public calendar block can be used as a pivot point to access private calendar data.

受影响的软件包

Packagist

concrete5/concrete5

ECOSYSTEM

引入0修复9.5.1

标识信息

别名 / CVE

CVE-2026-8204

CWE

CWE-639

软件生态

Packagist

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

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

CVSS_V4

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

原始 OSV JSON

{
  "id": "GHSA-x2fp-hj8c-mmxh",
  "aliases": [
    "CVE-2026-8204"
  ],
  "details": "Concrete CMS 9.5.0 and below is vulnerable to authorization Bypass in the Calendar Event Frontend Dialog which can allow cross-calendar data disclosure. A public calendar block can be used as a pivot point to access private calendar data.",
  "summary": "Concrete CMS is vulnerable to authorization bypass in the Calendar Event Frontend Dialog",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.5.1"
            }
          ]
        }
      ],
      "package": {
        "name": "concrete5/concrete5",
        "ecosystem": "Packagist"
      }
    }
  ],
  "modified": "2026-06-24T20:57:23Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
    },
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
    }
  ],
  "published": "2026-05-21T21:30:38Z",
  "references": [
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8204",
      "type": "ADVISORY"
    },
    {
      "url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes",
      "type": "WEB"
    },
    {
      "url": "https://github.com/concretecms/concretecms",
      "type": "PACKAGE"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "nvd_published_at": "2026-05-21T21:16:33Z",
    "github_reviewed_at": "2026-06-24T18:12:55Z"
  }
}