{"id":"BIT-discourse-2023-45806","summary":"Discourse vulnerable to DoS via Regexp Injection in Full Name","details":"Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, if a user has been quoted and uses a `|` in their full name, they might be able to trigger a bug that generates a lot of duplicate content in all the posts they've been quoted by updating their full name again. Version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches contain a patch for this issue. No known workaround exists, although one can stop the \"bleeding\" by ensuring users only use alphanumeric characters in their full name field.","aliases":["CVE-2023-45806","GHSA-hcgf-hg2g-mw78"],"modified":"2026-09-08T08:46:14.072597262Z","published":"2024-03-06T10:52:56.903Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*","cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.2.0:beta2:*:*:beta:*:*:*"]},"references":[{"type":"FIX","url":"https://github.com/discourse/discourse/commit/2ec25105179199cf80912bf011c18b8b870e1863"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/7d484864fe91ff79c478f57e7ddb1235d701921e"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-hcgf-hg2g-mw78"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45806"}],"affected":[{"package":{"name":"discourse","ecosystem":"Bitnami","purl":"pkg:bitnami/discourse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2023-45806.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"}]}],"schema_version":"1.9.0"}