{"id":"CVE-2023-2783","summary":"App Framework does not checks for the secret provided in the incoming webhook request","details":"Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.\n\n","aliases":["GHSA-455c-vqrf-mghr"],"modified":"2026-08-12T03:51:36.442303633Z","published":"2023-06-16T08:39:26.096Z","database_specific":{"cna_assigner":"Mattermost","cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2783.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"last_affected":"7.8.4"},{"last_affected":"7.9.3"},{"introduced":"7.10.0"},{"last_affected":"7.10.0"}]}]},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2783.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2783"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"f14c24391ca84740d90a29ec8b67579326eaa236"},{"last_affected":"b3eb2e451e18b4003634954c2c4be678695dc26a"},{"introduced":"c4d8c1450ab2b9538bbc2690ca1ee865567a5888"},{"last_affected":"27b2437e0f93d3f48b9caebdceb7795b64d5cd9f"},{"introduced":"5b33575d571469115f29720530ff5b53a6cb7de5"},{"last_affected":"5b33575d571469115f29720530ff5b53a6cb7de5"}],"database_specific":{"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost:7.10.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"7.8.0"},{"last_affected":"7.8.4"},{"introduced":"7.9.0"},{"last_affected":"7.9.3"},{"introduced":"7.10.0"},{"last_affected":"7.10.0"}]}}],"versions":["7.10.0","v7.9.3","v7.8.4","v7.10.0","v7.9.2","v7.8.3","v7.9.1","v7.8.2","v7.9.0","v7.8.1","v7.8.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2783.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}