FKIE_CVE-2026-48527

Vulnerability from fkie_nvd - Published: 2026-05-29 13:16 - Updated: 2026-07-21 12:10
Severity
8.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Summary
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.
References
security-advisories@github.comhttps://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "haxcms-nodejs",
          "vendor": "haxtheweb",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 26.0.1"
            }
          ]
        },
        {
          "product": "haxcms-php",
          "vendor": "haxtheweb",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 26.0.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue."
    },
    {
      "lang": "es",
      "value": "HAX CMS ayuda a gestionar el universo de micrositios con backends de PHP o NodeJs. Las versiones hasta la 26.0.0 inclusive est\u00e1n afectadas por una vulnerabilidad de cross-site scripting (XSS) almacenado en el endpoint `/system/api/saveNode`. Un usuario autenticado con permiso para editar p\u00e1ginas puede eludir el saneador HTML inyectando un atributo de gestor de eventos sin espacios en blanco antes del nombre del atributo. @haxtheweb/haxcms-nodejs 26.0.1 y haxcms-php 26.0.2 parchean el problema."
    }
  ],
  "id": "CVE-2026-48527",
  "lastModified": "2026-07-21T12:10:00.090",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48527",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-29T13:02:45.553797Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-29T13:16:23.133",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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