{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "MasaCMS",
          "vendor": "MasaCMS",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.2.9"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.3.1, \u003c 7.3.14"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.4.0-alpha.1, \u003c 7.4.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.5.0, \u003c 7.5.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Masa CMS is an open source Enterprise Content Management platform. Versions 7.2.8 and below, 7.3.1 through 7.3.13, 7.4.0-alpha.1 through 7.4.8 and 7.5.0 through 7.5.1 are vulnerable to XSS when an unsanitized value of the ajax URL query parameter is directly included within the \u003chead\u003e section of the HTML page. An attacker can execute arbitrary scripts in the context of the user\u0027s session, potentially leading to Session Hijacking, Data Theft, Defacement and Malware Distribution. This issue is fixed in versions 7.5.2, 7.4.9, 7.3.14, and 7.2.9. To work around this issue, configure a Web Application Firewall (WAF) rule (e.g., ModSecurity) to block requests containing common XSS payload characters in the ajax query parameter. Alternatively, implement server-side sanitization using middleware to strip or escape dangerous characters from the ajax parameter before it reaches the vulnerable rendering logic."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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": "2025-12-12T04:50:00.637Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/MasaCMS/MasaCMS/security/advisories/GHSA-249c-vqwv-43vc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/MasaCMS/MasaCMS/security/advisories/GHSA-249c-vqwv-43vc"
        },
        {
          "name": "https://github.com/MasaCMS/MasaCMS/commit/376c27196b1e2489888b7a000cdf5c45bb85959e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MasaCMS/MasaCMS/commit/376c27196b1e2489888b7a000cdf5c45bb85959e"
        }
      ],
      "source": {
        "advisory": "GHSA-249c-vqwv-43vc",
        "discovery": "UNKNOWN"
      },
      "title": "Masa CMS vulnerable to Cross-Site Scripting (XSS) through URL Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-66492",
    "datePublished": "2025-12-12T04:50:00.637Z",
    "dateReserved": "2025-12-02T22:44:04.708Z",
    "dateUpdated": "2025-12-12T04:50:00.637Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-66492\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-12-12T05:16:12.463\",\"lastModified\":\"2025-12-12T15:17:31.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Masa CMS is an open source Enterprise Content Management platform. Versions 7.2.8 and below, 7.3.1 through 7.3.13, 7.4.0-alpha.1 through 7.4.8 and 7.5.0 through 7.5.1 are vulnerable to XSS when an unsanitized value of the ajax URL query parameter is directly included within the \u003chead\u003e section of the HTML page. An attacker can execute arbitrary scripts in the context of the user\u0027s session, potentially leading to Session Hijacking, Data Theft, Defacement and Malware Distribution. This issue is fixed in versions 7.5.2, 7.4.9, 7.3.14, and 7.2.9. To work around this issue, configure a Web Application Firewall (WAF) rule (e.g., ModSecurity) to block requests containing common XSS payload characters in the ajax query parameter. Alternatively, implement server-side sanitization using middleware to strip or escape dangerous characters from the ajax parameter before it reaches the vulnerable rendering logic.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.7}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://github.com/MasaCMS/MasaCMS/commit/376c27196b1e2489888b7a000cdf5c45bb85959e\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/MasaCMS/MasaCMS/security/advisories/GHSA-249c-vqwv-43vc\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}