CVE-2026-1628

{"id": "CVE-2026-1628", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.1}]}, "published": "2026-03-02T14:16:23.223", "references": [{"url": "https://mattermost.com/security-updates", "tags": ["Vendor Advisory"], "source": "responsibledisclosure@mattermost.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "description": [{"lang": "en", "value": "CWE-829"}]}], "descriptions": [{"lang": "en", "value": "Mattermost Desktop App versions <=5.13.3 fail to attach listeners restricting navigation to external sites within the Mattermost app which allows a malicious server to expose preload script functionality to untrusted servers via having a user open an external link in their Mattermost server. Mattermost Advisory ID: MMSA-2026-00596"}, {"lang": "es", "value": "Las versiones &lt;=5.13.3 de la aplicaci\u00f3n de escritorio de Mattermost no adjuntan oyentes que restringen la navegaci\u00f3n a sitios externos dentro de la aplicaci\u00f3n Mattermost, lo que permite a un servidor malicioso exponer la funcionalidad de script de precarga a servidores no confiables al hacer que un usuario abra un enlace externo en su servidor Mattermost. ID de Aviso de Mattermost: MMSA-2026-00596"}], "lastModified": "2026-03-05T16:07:40.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17854B0E-22CE-4E16-A346-75A6E24BD9E3", "versionEndExcluding": "5.13.4"}], "operator": "OR"}]}], "sourceIdentifier": "responsibledisclosure@mattermost.com"}