CVE-2025-56236

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:formcms:formcms:*:*:*:*:*:*:*:*", "matchCriteriaId": "F053D98B-53DB-439C-A8A4-8739850CD325", "versionEndExcluding": "0.5.7", "versionStartIncluding": "0.5.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature. Authenticated users can upload .html files containing malicious JavaScript, which are accessible via a public URL. When a privileged user accesses the file, the script executes in their browser context."}, {"lang": "es", "value": "FormCms v0.5.5 contiene una vulnerabilidad de cross-site scripting (XSS) almacenada en la funci\u00f3n de subida de avatares. Usuarios autenticados pueden subir archivos .html que contienen JavaScript malicioso, los cuales son accesibles a trav\u00e9s de una URL p\u00fablica. Cuando un usuario privilegiado accede al archivo, el script se ejecuta en el contexto de su navegador."}], "id": "CVE-2025-56236", "lastModified": "2026-09-26T00:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-56236", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-08-28T20:02:52.927479Z", "version": "2.0.3"}}]}, "published": "2025-08-28T15:16:02.953", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking"], "url": "https://github.com/FormCms/FormCms/issues/27"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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