{"id":"CVE-2023-49809","aliases":["BIT-mattermost-2023-49809","EUVD-2023-53718","GHSA-478w-7mxw-36gh"],"status":"published","title":"Todo plugin gets crashed and disabled by member","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00642,"percentile":0.51074,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2023-12-12T08:20:08Z","modified":"2026-10-28T02:31:14Z","fixes":[{"ecosystem":"Bitnami","package":"mattermost","fixed_in":["8.1.6","9.1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mattermost","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.6"},{"introduced":"9.0.0"},{"fixed":"9.1.1"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost"},{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Issue Tracking","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49809","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-478w-7mxw-36gh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49809.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-49809","title":"Todo plugin gets crashed and disabled by member","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. \n\n","status":"published","published":"2023-12-12T08:20:08.321Z","modified":"2024-08-02T22:01:26.051Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:35:12.998024Z"}],"euvd":[{"id":"EUVD-2023-53718","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. \n\n","status":"published","published":"2023-12-12T08:20:08Z","modified":"2024-08-02T22:01:26Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T03:49:55.731961Z"}],"ghsa":[{"id":"GHSA-478w-7mxw-36gh","title":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to...","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. \n\n","status":"published","published":"2023-12-12T09:30:33Z","modified":"2023-12-12T09:30:39Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:55:10.896568Z"}],"nvd":[{"id":"CVE-2023-49809","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. \n\n","status":"published","published":"2023-12-12T09:15:09.11Z","modified":"2026-06-17T06:36:30.45Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:08:54.010507Z"}],"osv":[{"id":"CVE-2023-49809","title":"Todo plugin gets crashed and disabled by member","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. \n\n","status":"published","published":"2023-12-12T08:20:08.321Z","modified":"2026-10-28T02:31:14.38849337Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"BIT-mattermost-2023-49809","description":"Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.","status":"published","published":"2024-03-06T10:58:05.591Z","modified":"2025-04-03T14:40:37.652Z","updated_at":"2026-11-02T15:28:33.072289Z"}]}}