Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title]

{
  "id": "d2cd690b7a2bced70d4b4530bcbdab7d855861d17c143ecc07f3f6b2241bf333",
  "url": "https://osv.dev/vulnerability/CVE-2024-3558",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title]",
    "summary": "The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the 'cfs[post_title]' parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
    "evidence": "osv:CVE-2024-3558",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-3558",
      "aliases": [
        "CVE-2024-3558"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mgibbs189/custom-field-suite",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "d6bd98c858e3133b30383f7fa1ed393e15f0e51c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.6.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:custom_field_suite_project:custom_field_suite:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.6.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.6.7",
            "2.6.5",
            "2.6.4",
            "2.6.2.1",
            "2.6.2",
            "2.6",
            "2.5.16",
            "2.5.15",
            "2.5.14",
            "2.5.13",
            "2.5.12",
            "2.5.11",
            "2.5.10",
            "2.5.9",
            "2.5.8",
            "2.5.7",
            "2.5.6.1",
            "2.5.6",
            "2.5.5",
            "2.5.4",
            "2.5.3",
            "2.5.2",
            "2.5.1",
            "2.5",
            "2.4.5",
            "2.4.4",
            "2.4.3",
            "2.4.2",
            "2.4.1",
            "2.4",
            "2.3.11",
            "2.3.9",
            "2.3.8",
            "2.3.7",
            "2.3.6",
            "2.3.5",
            "2.3.4",
            "2.3.3",
            "2.3.2",
            "2.3.0",
            "2.2.2",
            "2.1.0",
            "2.2.0",
            "2.1.1",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "1.9.9",
            "1.9.8",
            "1.9.7",
            "1.9.6",
            "1.9.5",
            "1.9.4",
            "1.9.3",
            "1.9.2",
            "1.9.1",
            "1.9.0",
            "1.8.9",
            "1.8.8",
            "1.8.6",
            "1.8.5",
            "1.8.3",
            "1.8.2",
            "1.8.1",
            "1.8.0",
            "1.7.9",
            "1.7.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-3558.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.640650259Z",
      "provider": "osv",
      "references": [
        "https://core.trac.wordpress.org/ticket/56655",
        "https://en-gb.wordpress.org/plugins/custom-field-suite/",
        "https://github.com/WordPress/WordPress/blob/22d95abc55824e83904dc0fef290464b6bec7708/wp-admin/includes/template.php#L1384",
        "https://github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/api.php#L282",
        "https://github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/field_group.php#L20",
        "https://github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/form.php#L64",
        "https://mgibbs189.github.io/custom-field-suite/",
        "https://www.wordfence.com/threat-intel/vulnerabilities/id/8e4dc6fd-4bd5-4ed1-ade0-cf2f8831fac3?source=cve",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3558.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-3558"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "Wordfence",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3558.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-3558",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497683,
  "published_at": "2024-06-20T02:08:25.58+00:00"
}