{"id":"CVE-2021-34817","details":"A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad.","modified":"2026-08-27T08:40:32.814426Z","published":"2021-07-19T14:15:08.150Z","references":[{"type":"ADVISORY","url":"https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities"},{"type":"FIX","url":"https://etherpad.org/#download"},{"type":"FIX","url":"https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa"},{"type":"FIX","url":"https://github.com/ether/etherpad-lite/releases/tag/1.8.14"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ether/etherpad","events":[{"introduced":"5db0c8d1cfc3f354a5a8badce6d5c3890d428e98"},{"last_affected":"5db0c8d1cfc3f354a5a8badce6d5c3890d428e98"},{"fixed":"a7968115581e20ef47a533e030f59f830486bdfa"},{"fixed":"571b37b772c324d6f5eddcd3aecf3e02ffcac1c3"}],"database_specific":{"cpe":"cpe:2.3:a:etherpad:etherpad:1.8.13:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.8.13"},{"last_affected":"1.8.13"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["1.8.13"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34817.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}