CVE-2026-25517

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Antes de las versiones 6.3.6, 7.0.4, 7.1.3, 7.2.2 y 7.3, debido a una verificaci\u00f3n de permisos faltante en los puntos finales de vista previa, un usuario con acceso al administrador de Wagtail y conocimiento de los campos de un modelo puede elaborar un env\u00edo de formulario para obtener una representaci\u00f3n de vista previa de cualquier p\u00e1gina, fragmento u objeto de configuraci\u00f3n del sitio para los cuales las vistas previas est\u00e1n habilitadas, que consiste en cualquier dato elegido por el usuario. Los datos existentes del objeto en s\u00ed no se exponen, pero dependiendo de la naturaleza de la plantilla que se est\u00e1 renderizando, esto puede exponer otros contenidos de la base de datos que de otro modo solo ser\u00edan accesibles para usuarios con acceso de edici\u00f3n sobre el modelo. La vulnerabilidad no es explotable por un visitante de sitio ordinario sin acceso al administrador de Wagtail. Este problema ha sido parcheado en las versiones 6.3.6, 7.0.4, 7.1.3, 7.2.2 y 7.3."}], "id": "CVE-2026-25517", "lastModified": "2026-06-17T10:24:46.633", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25517", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-05T14:20:11.920839Z", "version": "2.0.3"}}]}, "published": "2026-02-04T21:16:02.540", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/wagtail/wagtail/commit/01fd3477365a193e6a8270311defb76e890d2719"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/wagtail/wagtail/commit/5f09b6da61e779b0e8499bdbba52bf2f7bd3241f"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/wagtail/wagtail/commit/73f070dbefbd3b39ea6649ce36bd2d2a6eef2190"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/wagtail/wagtail/commit/7dfe8de5f8b3f112c73c87b6729197db16454915"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/wagtail/wagtail/commit/dd824023a031f1b82a6b6f83a97a5c73391b7c03"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-4qvv-g3vr-m348"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-17T23:12:38.194102+00:00", "value": {"mitigation_remediation": ["Upgrade Wagtail to a patched release (6.3.6, 7.0.4, 7.1.3, 7.2.2, or 7.3).", "If an upgrade is not feasible, disable preview functionality for models that do not need it or restrict preview access to users with edit permissions, e.g., by adding a permission check in the view logic.", "Ensure that preview endpoints are not exposed to unauthenticated users and that the admin account is protected by strong authentication such as multi\u2011factor authentication."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized data exposure via admin preview rendering"}, "threat_synthesis": {"affected_systems": "Vulnerable versions are all releases of Wagtail before 6.3.6, 7.0.4, 7.1.3, 7.2.2, and 7.3. These are the versions for the 6.x and 7.x major lines. The issue has been fixed in the releases listed above. The affected product is the Wagtail CMS distributed by Torchbox.", "description_and_impact": "Wagtail, an open\u2011source CMS built on Django, contained a missing permission check on its preview endpoints. A user who can log in to the Wagtail admin area and knows a model's field names can submit a crafted form to request a preview rendering of any page, snippet, or site\u2011setting object that has previewing enabled. The rendered preview uses whatever data the attacker supplies, and because the template may reference other database fields, the response can leak content that normally requires edit rights. The vulnerability does not expose the object's existing data, but it can reveal other protected data. An unauthenticated visitor cannot trigger the flaw.", "risk_and_exploitability": "CVSS score 5.1 indicates medium severity. EPSS score below 1% suggests low probability of exploitation observed at the time of analysis, and the vulnerability is not yet in CISA's Known Exploited Vulnerabilities catalog. Exploitation requires administrative access to Wagtail and knowledge of model structure, so the attack surface is limited to authenticated insiders or attackers who have compromised an admin account. If used, the flaw could allow an attacker to render arbitrary data in page previews and potentially reveal sensitive information that would otherwise be protected by edit permissions."}}}}, "created": "2026-02-05T11:39:54.503990+00:00", "updated": "2026-04-17T23:15:30.810246+00:00", "vendors": ["wagtail", "wagtail$PRODUCT$wagtail"]}