CVE-2026-53966

Estado: Pendiente de análisisAlta (7.1)—

XWiki Platform is a generic wiki platform. From 13.4-rc-1 until 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1, the Live Data edit REST API allows a user who can edit a page to change that page's rights without executing the normal document-saving authorization checks. The user can grant script right and then execute potentially dangerous Velocity scripts or send unfiltered HTML and JavaScript to clients. The same missing checks can circumvent extension security controls implemented as listeners for UserUpdatingDocumentEvent and related user document events. This issue is fixed in versions 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 7.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.77%
Percentil entre todas las CVEs puntuadas: 54
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement60 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access55 %

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training User Account Management

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Xwiki — Xwiki Platform^AI

CWE

CWE-862

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-53966",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53966",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-15T17:38:26.447862Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 7.1,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "xwiki",
          "product": "xwiki-platform",
          "versions": [
            {
              "status": "affected",
              "version": ">= 13.4-rc-1, < 16.10.17"
            },
            {
              "status": "affected",
              "version": ">= 17.0.0-rc-1, < 17.4.10"
            },
            {
              "status": "affected",
              "version": ">= 17.5.0-rc-1, < 17.10.4"
            },
            {
              "status": "affected",
              "version": ">= 18.0.0-rc-1, < 18.1.0-rc-1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-15T15:17:17.533",
  "references": [
    {
      "url": "https://github.com/xwiki/xwiki-platform/commit/1ddb954767e50782be960b953b012c1242f6843b",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/commit/778b82b4806ce7ebddb775f953545ff73b841f8b",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/commit/fbad7dac8f46c560577e41b9259cbbbbd343e6fc",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-16.10.17",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.10",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.1.0-rc-1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://jira.xwiki.org/browse/XWIKI-23986",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "XWiki Platform is a generic wiki platform. From 13.4-rc-1 until 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1, the Live Data edit REST API allows a user who can edit a page to change that page's rights without executing the normal document-saving authorization checks. The user can grant script right and then execute potentially dangerous Velocity scripts or send unfiltered HTML and JavaScript to clients. The same missing checks can circumvent extension security controls implemented as listeners for UserUpdatingDocumentEvent and related user document events. This issue is fixed in versions 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1."
    }
  ],
  "lastModified": "2026-09-30T17:43:24.057",
  "sourceIdentifier": "security-advisories@github.com"
}