CVE-2026-49436

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{"affected": [{"affectedData": [{"product": "LinkAce", "vendor": "Kovah", "versions": [{"status": "affected", "version": "< 2.5.7"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LinkAce is a self-hosted archive to collect website links. Prior to version 2.5.7, the Bulk Link API endpoint (`POST /api/v2/bulk/links`) accepts URLs without any format validation, allowing an authenticated user to store a `javascript:` URI. The stored URI is later rendered verbatim as an `href` in Blade templates, and clicking it executes arbitrary JavaScript in the victim's browser \u2014 exfiltrating cookies and session tokens. Version 2.5.7 fixes the issue."}, {"lang": "es", "value": "LinkAce es un archivo autoalojado para recopilar enlaces de sitios web. Antes de la versi\u00f3n 2.5.7, el endpoint de la API de enlaces masivos (POST /api/v2/bulk/links) acepta URLs sin ninguna validaci\u00f3n de formato, permitiendo a un usuario autenticado almacenar una URI javascript:. La URI almacenada se renderiza posteriormente de forma literal como un href en las plantillas Blade, y al hacer clic en ella se ejecuta JavaScript arbitrario en el navegador de la v\u00edctima - exfiltrando cookies y tokens de sesi\u00f3n. La versi\u00f3n 2.5.7 corrige el problema."}], "id": "CVE-2026-49436", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49436", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T15:46:45.676388Z", "version": "2.0.3"}}]}, "published": "2026-08-20T22:17:20.240", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Kovah/LinkAce/commit/642ac520347205a8277668bcae269bdc21223eae"}, {"source": "security-advisories@github.com", "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-6r73-pchm-4m39"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-6r73-pchm-4m39"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.7)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "LinkAce", "source": "cna", "vendor": "Kovah"}, "product": "linkace", "vendor": "kovah"}], "created": "2026-08-21T01:00:04.340242+00:00", "updated": "2026-08-21T01:00:04.532953+00:00", "vendors": ["kovah", "kovah$PRODUCT$linkace"]}