{"id":"CVE-2021-20186","details":"It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that if the TeX notation filter was enabled, additional sanitizing of TeX content was required to prevent the risk of stored XSS.","aliases":["BIT-moodle-2021-20186","GHSA-h8m4-h385-qhqv"],"modified":"2026-07-09T00:12:23.572661Z","published":"2021-01-28T19:15:13.300Z","references":[{"type":"FIX","url":"https://moodle.org/mod/forum/discuss.php?d=417170"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/moodle/moodle","events":[{"introduced":"0"},{"fixed":"bbf242efb086307a0af9367d6caea08649b261d1"},{"introduced":"f968cd44e8ee5d54b1bc56823040ff770dbf18af"},{"fixed":"323c12674aa74d327ded9f5e44458cd5d1aea174"},{"introduced":"500c131eb49771e36f68d151dfa37fef5a9bc2df"},{"fixed":"de301d4237c42ddd0d4ae7395e663b8457943727"},{"introduced":"ec58cefefb2722f61f77c9a2b6a12d40a8c078a0"},{"fixed":"00821c744c3f102e706500f9815e0fa5e6b8fb25"}],"database_specific":{"cpe":"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.5.16"},{"introduced":"3.8.0"},{"fixed":"3.8.7"},{"introduced":"3.9.0"},{"fixed":"3.9.4"},{"introduced":"3.10.0"},{"fixed":"3.10.1"}],"source":"CPE_RANGE"}}],"versions":["v3.9.3","v3.5.15","v3.8.6","v3.10.0","v3.9.2","v3.8.5","v3.5.14","v3.5.13","v3.8.4","v3.9.1","v3.9.0","v3.8.3","v3.5.12","v3.8.2","v3.5.11","v3.5.10","v3.8.1","v3.8.0","v3.5.9","v3.5.8","v3.5.7","v3.5.6","v3.5.5","v3.5.4","v3.5.3","v3.5.2","v3.5.1","v3.5.0","v3.5.0-rc1","v3.5.0-beta","v3.4.0","v3.4.0-rc2","v3.4.0-rc3","v3.4.0-rc1","v3.4.0-beta","v3.3.0","v3.3.0-rc3","v3.3.0-rc2","v3.3.0-rc1","v3.3.0-beta","v3.2.0-rc2","v3.2.0","v3.2.0-rc4","v3.2.0-beta","v3.2.0-rc5","v3.2.0-rc3","v3.2.0-rc1","v3.1.0-beta","v3.1.0","v3.1.0-rc2","v3.1.0-rc1","v3.0.0-rc3","v3.0.0","v3.0.0-rc4","v3.0.0-rc2","v3.0.0-rc1","v3.0.0-beta","v2.9.0","v2.9.0-rc2","v2.9.0-rc1","v2.9.0-beta","v2.8.0","v2.8.0-rc2","v2.8.0-rc1","v2.8.0-beta","v2.7.0","v2.7.0-rc2","v2.7.0-rc1","v2.7.0-beta","v2.6.0","v2.6.0-rc1","v2.6.0-beta","v2.5.0","v2.5.0-rc1","v2.5.0-beta","v2.4.0-beta","v2.4.0-rc1","v2.4.0","v2.3.0","v2.3.0-rc1","v2.3.0-beta","v2.2.0","v2.2.0-rc1","v2.2.0-beta","v2.1.0","v2.0.1","v2.0.0","v2.0.0-rc2","v2.0.0-rc1","v1.3.0","v1.2.1","v1.2.0","v1.1.1","v1.1.0","v1.0.9","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20186.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}