{"id":"CVE-2021-37703","details":"Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta5, a user's read state for a topic such as the last read post number and the notification level is exposed.","aliases":["BIT-discourse-2021-37703","GHSA-gq2h-qhg2-phf9"],"modified":"2026-09-29T11:45:43.021389914Z","published":"2021-08-13T16:15:07.827Z","database_specific":{"unresolved_ranges":[{"vendor_product":"discourse:discourse","cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"],"extracted_events":[{"fixed":"2.7.8"}],"source":"CPE_RANGE"},{"cpes":["cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*"],"extracted_events":[{"introduced":"2.8.0-beta1"},{"last_affected":"2.8.0-beta1"},{"introduced":"2.8.0-beta2"},{"last_affected":"2.8.0-beta2"},{"introduced":"2.8.0-beta3"},{"last_affected":"2.8.0-beta3"},{"introduced":"2.8.0-beta4"},{"last_affected":"2.8.0-beta4"}],"source":"CPE_STRING","vendor_product":"discourse:discourse"}]},"references":[{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-gq2h-qhg2-phf9"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/aed65ec16d38886d7be7209d8c02df4ffd4937a4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/discourse/discourse","events":[{"introduced":"0"},{"fixed":"aed65ec16d38886d7be7209d8c02df4ffd4937a4"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v2.8.0.beta4","v2.8.0.beta3","v2.8.0.beta2","v2.8.0.beta1","v2.7.0.beta9","v2.7.0.beta8","v2.7.0.beta7","v2.7.0.beta6","v2.7.0.beta5","v2.7.0.beta4","v2.7.0.beta3","v2.7.0.beta2","v2.7.0.beta1","v2.6.0.beta6","v2.6.0.beta5","v2.6.0.beta4","v2.6.0.beta3","v2.6.0.beta2","v2.6.0.beta1","v2.5.0.beta7","v2.5.0.beta6","v2.5.0.beta5","v2.5.0.beta4","v2.5.0.beta3","v2.5.0.beta2","v2.5.0.beta1","v2.4.0.beta11","v2.4.0.beta10","v2.4.0.beta9","v2.4.0.beta8","v2.4.0.beta7","v2.4.0.beta6","v2.4.0.beta5","v2.4.0.beta4","v2.4.0.beta3","v2.4.0.beta2","v2.4.0.beta1","v2.3.0.beta11","v2.3.0.beta10","v2.3.0.beta9","v2.3.0.beta8","v2.3.0.beta7","v2.3.0.beta6","v2.3.0.beta5","v2.3.0.beta4","v2.3.0.beta3","v2.3.0.beta2","v2.3.0.beta1","v2.2.0.beta10","v2.2.0.beta9","v2.2.0.beta8","v2.2.0.beta7","v2.2.0.beta6","v2.2.0.beta5","v2.2.0.beta4","v2.2.0.beta3","v2.2.0.beta2","v2.2.0.beta1","v2.1.0.beta6","v2.1.0.beta5","v2.1.0.beta4","v2.1.0.beta3","v2.1.0.beta2","v2.1.0.beta1","v2.0.0.beta10","v2.0.0.beta9","v2.0.0.beta8","v2.0.0.beta7","v2.0.0.beta6","v2.0.0.beta5","v2.0.0.beta4","v2.0.0.beta3","v2.0.0.beta2","v2.0.0.beta1","v1.9.0.beta17","v1.9.0.beta16","v1.9.0.beta15","v1.9.0.beta14","v1.9.0.beta13","v1.9.0.beta12","v1.9.0.beta11","v1.9.0.beta10","v1.9.0.beta9","v1.9.0.beta8","v1.9.0.beta7","v1.9.0.beta6","v1.9.0.beta5","v1.9.0.beta4","v1.9.0.beta3","v1.9.0.beta2","v1.9.0.beta1","v1.8.0.beta13","v1.8.0.beta12","v1.8.0.beta11","v1.8.0.beta10","v1.8.0.beta9","v1.8.0.beta8","v1.8.0.beta7","v1.8.0.beta6","v1.8.0.beta5","v1.8.0.beta4","v1.8.0.beta3","v1.8.0.beta2","v1.8.0.beta1","v1.7.0.beta11","v1.7.0.beta10","v1.7.0.beta9","v1.7.0.beta8","v1.7.0.beta7","v1.7.0.beta6","v1.7.0.beta5","v1.7.0.beta4","v1.7.0.beta3","v1.7.0.beta1","v1.7.0.beta2","v1.6.0.beta12","v1.6.0.beta11","v1.6.0.beta10","v1.6.0.beta9","v1.6.0.beta8","v1.6.0.beta7","v1.6.0.beta6","v1.6.0.beta5","v1.6.0.beta4","v1.6.0.beta3","v1.6.0.beta2","v1.6.0.beta1","v1.5.0.beta14","v1.5.0.beta13b","v1.5.0.beta13","v1.5.0.beta12","v1.5.0.beta11","v1.5.0.beta10","v1.5.0.beta9","v1.5.0.beta8","v1.5.0.beta7","v1.5.0.beta6","v1.5.0.beta5","v1.5.0.beta4","v1.5.0.beta2","v1.5.0.beta1","v1.4.0.beta12","v1.4.0.beta11","v1.4.0.beta10","v1.4.0.beta9","v1.4.0.beta8","v1.4.0.beta7","v1.4.0.beta6","v1.4.0.beta5","v1.4.0.beta4","v1.4.0.beta3","v1.4.0.beta2","v1.4.0.beta1","v1.3.0.beta11","v1.3.0.beta10","v1.3.0.beta9","v1.3.0.beta6","v1.3.0.beta5","v1.3.0.beta4","v1.3.0.beta3","v1.3.0.beta2","v1.3.0.beta1","v1.2.0.beta9","v1.2.0.beta8","v1.2.0.beta7","v1.2.0.beta6","v1.2.0.beta5","v1.2.0.beta4","v1.2.0.beta3","v1.2.0.beta2","v1.2.0.beta1","v1.1.0.beta8","v1.1.0.beta7","v1.1.0.beta6b","v1.1.0.beta6","v1.1.0.beta5","v1.1.0.beta4","v1.1.0.beta3","v1.1.0.beta2","v1.0.0","v0.9.9.18","v0.9.9.17","v0.9.9.16","v0.9.9.15","v0.9.9.14","v0.9.9.13","v0.9.9.12","v0.9.9.11","v0.9.9.10","v0.9.9.9","v0.9.9.8","v0.9.9.7","v0.9.9.6","v0.9.9.5","v0.9.9.4","v0.9.9.3","v0.9.9.2","v0.9.9.1","v0.9.8.11","v0.9.8.10","v0.9.8.9","v0.9.8.8","v0.9.8.7","v0.9.8.6","v0.9.8.5","v0.9.8.4","v0.9.8.3","v0.9.8.2","v0.9.8.1","v0.9.8","v0.9.7.9","v0.9.7.8","v0.9.7.7","v0.9.7.6","v0.9.7.5","v0.9.7.4","v0.9.7.3","v0.9.7.2","v0.9.7.1","v0.9.7","v0.9.6.4","v0.9.6.3","v0.9.6.1","v0.9.6","v0.9.5.2","v0.9.5.1","v0.9.5","v0.9.4","v0.9.3","v0.9.2.6","v0.9.2.5","v0.9.2","v0.9.1","v0.9.0","v0.8.9","v0.8.8","v0.8.7","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37703.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"}]}