{"id":"CVE-2023-36818","aliases":["BIT-discourse-2023-36818","EUVD-2023-40748","GHSA-gxqx-3q2p-37gm"],"status":"published","title":"Denial of service via User Custom Sidebar Section Unlimited Link Creation in discourse","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","severity":{"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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00699,"percentile":0.53403,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2023-07-14T21:16:14Z","modified":"2026-10-28T02:30:44Z","affected":[{"source":"osv","ecosystem":"Bitnami","package":"discourse","ranges":[{"type":"SEMVER","events":[{"introduced":"3.1.0-beta5"},{"last_affected":"3.1.0-beta5"}]}]}],"products":[{"vendor":"discourse","product":"discourse"}],"references":[{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-gxqx-3q2p-37gm","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web","advisory"]},{"url":"https://github.com/discourse/discourse/commit/52b003d915761f1581ae2d105f3cbe76df7bf1ff","tags":["x_refsource_MISC","x_transferred","Patch","web","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36818.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36818","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-36818","title":"Denial of service via User Custom Sidebar Section Unlimited Link Creation in discourse","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2023-07-14T21:16:14.912Z","modified":"2024-10-18T17:39:21.316Z","cvss":[{"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":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:35:28.218693Z"}],"euvd":[{"id":"EUVD-2023-40748","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2023-07-14T21:16:14Z","modified":"2024-10-18T17:39:21Z","cvss":[{"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"}],"updated_at":"2026-11-03T00:27:32.691525Z"}],"nvd":[{"id":"CVE-2023-36818","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2023-07-14T22:15:09.243Z","modified":"2026-06-17T06:07:08.49Z","cvss":[{"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":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:08:17.044696Z"}],"osv":[{"id":"CVE-2023-36818","title":"Denial of service via User Custom Sidebar Section Unlimited Link Creation in discourse","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2023-07-14T21:16:14.912Z","modified":"2026-10-28T02:30:44.70596564Z","cvss":[{"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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:44:32.510144Z"},{"id":"BIT-discourse-2023-36818","description":"Discourse is an open source discussion platform. In affected versions a request to create or update custom sidebar section can cause a denial of service. This issue has been patched in commit `52b003d915`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-03-06T10:56:14.187Z","modified":"2025-10-15T02:42:19.76729Z","updated_at":"2026-11-02T15:28:28.70813Z"}]}}