CVE-2025-53857

{"id": "CVE-2025-53857", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "published": "2025-08-11T19:15:29.603", "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-862"}]}], "descriptions": [{"lang": "en", "value": "Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint."}, {"lang": "es", "value": "La versi\u00f3n &lt;1.5.0 del complemento Mattermost Confluence no puede verificar el acceso del usuario al canal, lo que permite a los atacantes obtener detalles de suscripci\u00f3n del canal sin el acceso adecuado al canal a trav\u00e9s de una llamada API al endpoint GET autocomplete/GetChannelSubscriptions."}], "lastModified": "2025-09-25T18:55:50.410", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*", "vulnerable": true, "matchCriteriaId": "FA975409-AB8C-4894-A040-D7681CE73598", "versionEndExcluding": "1.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "responsibledisclosure@mattermost.com"}