{"id":"CVE-2022-23549","aliases":["BIT-discourse-2022-23549","EUVD-2022-28567","GHSA-p47g-v5wr-p4xp"],"status":"published","title":"Discourse vulnerable to bypass of post max_length using HTML comments","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","severity":{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00619,"percentile":0.5,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2023-01-05T00:00:00Z","modified":"2026-10-28T02:30:44Z","fixes":[{"ecosystem":"Bitnami","package":"discourse","fixed_in":["2.8.14"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"discourse","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.8.14"}]}]}],"products":[{"vendor":"discourse","product":"discourse"}],"references":[{"url":"https://github.com/discourse/discourse/commit/bf6b08670a927cc80bb090b7a2e710b4b554e6a8","tags":["x_transferred","Patch","Third Party Advisory","advisory","fix"]},{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-p47g-v5wr-p4xp","tags":["x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23549","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23549.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-23549","title":"Discourse vulnerable to bypass of post max_length using HTML comments","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","status":"published","published":"2023-01-05T00:00:00Z","modified":"2025-03-10T21:32:15.478Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:34:29.478363Z"}],"euvd":[{"id":"EUVD-2022-28567","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","status":"published","published":"2023-01-05T00:00:00Z","modified":"2025-03-10T21:32:15Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:53:08.584552Z"}],"nvd":[{"id":"CVE-2022-23549","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","status":"published","published":"2023-01-05T19:15:09.5Z","modified":"2026-06-17T04:30:20.25Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","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-20"],"updated_at":"2026-11-02T14:07:34.758863Z"}],"osv":[{"id":"CVE-2022-23549","title":"Discourse vulnerable to bypass of post max_length using HTML comments","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","status":"published","published":"2023-01-05T00:00:00Z","modified":"2026-10-28T02:30:44.893850547Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:44:24.061177Z"},{"id":"BIT-discourse-2022-23549","title":"Discourse vulnerable to bypass of post max_length using HTML comments","description":"Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.","status":"published","published":"2024-03-06T11:07:09.171Z","modified":"2026-09-08T08:46:10.396128731Z","updated_at":"2026-11-02T15:28:28.70813Z"}]}}