{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Osom Blocks \u2013 Custom Post Type listing block",
          "vendor": "osompress",
          "versions": [
            {
              "lessThanOrEqual": "1.2.1",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Thaleikis"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Osom Blocks \u2013 Custom Post Type listing block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u2018class_name\u2019 parameter in all versions up to, and including, 1.2.1 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-27T07:22:22.816Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/54e022df-0dc7-4f60-811d-48a92b723d55?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/osomblocks/trunk/blocks/cpt-list/index.php#L171"
        },
        {
          "url": "https://wordpress.org/plugins/osomblocks/#developers"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-06-26T19:06:29.000+00:00",
          "value": "Disclosed"
        }
      ],
      "title": "Osom Blocks \u003c= 1.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via class_name Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2025-5940",
    "datePublished": "2025-06-27T07:22:22.816Z",
    "dateReserved": "2025-06-09T16:00:30.622Z",
    "dateUpdated": "2025-06-27T07:22:22.816Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-5940\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2025-06-27T08:15:22.857\",\"lastModified\":\"2025-06-27T08:15:22.857\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Osom Blocks \u2013 Custom Post Type listing block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u2018class_name\u2019 parameter in all versions up to, and including, 1.2.1 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.\"},{\"lang\":\"es\",\"value\":\"El complemento Osom Blocks \u2013 Custom Post Type listing block para WordPress es vulnerable a cross site scripting almacenado a trav\u00e9s del par\u00e1metro \u0027class_name\u0027 en todas las versiones hasta la 1.2.1 incluida, debido a una depuraci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de colaborador o superior, inyectar scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n al acceder un usuario a una p\u00e1gina inyectada.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.1,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/osomblocks/trunk/blocks/cpt-list/index.php#L171\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://wordpress.org/plugins/osomblocks/#developers\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/54e022df-0dc7-4f60-811d-48a92b723d55?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}