{"id":"CVE-2021-3768","details":"bookstack is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","modified":"2026-07-09T01:31:31.688444Z","published":"2021-09-06T12:15:08.307Z","references":[{"type":"FIX","url":"https://github.com/bookstackapp/bookstack/commit/5e6092aaf8fd420202016038286554860bf8ea64"},{"type":"FIX","url":"https://huntr.dev/bounties/64a0229f-ff5e-4c64-b83e-9bfc0698a78e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bookstackapp/bookstack","events":[{"introduced":"0"},{"fixed":"88bcb68fcb9ef64af5451dc64d53a7af84454d96"},{"fixed":"5e6092aaf8fd420202016038286554860bf8ea64"}],"database_specific":{"cpe":"cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"21.08.2"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v21.08.1","v21.08","v21.05.4","v21.05.3","v21.05.2","v21.05.1","v21.05","v21.04.6","v21.04.5","v21.04.4","v21.04.3","v21.04.2","v21.04.1","v21.04","v0.31.8","v0.31.7","v0.31.6","v0.31.5","v0.31.4","v0.31.3","v0.31.2","v0.31.1","v0.31.0","v0.30.7","v0.30.6","v0.30.5","v0.30.4","v0.30.3","v0.30.2","v0.30.1","v0.30.0","v0.29.3","v0.29.2","v0.29.1","v0.29.0","v0.28.3","v0.28.2","v0.28.1","v0.28.0","v0.27.5","v0.27.4","v0.27.3","v0.27.2","v0.27.1","v0.27","v0.26.4","v0.26.3","v0.26.2","v0.26.1","v0.26.0","v0.25.5","v0.25.4","v0.25.3","v0.25.2","v0.25.1","v0.25.0","v0.24.3","v0.24.2","v0.24.1","v0.24.0","v0.23.2","v0.23.1","v0.23.0","v0.22.0","v0.21.0","v0.20.3","v0.20.2","v0.20.1","v0.20.0","v0.19.0","v0.18.5","v0.18.4","v0.18.3","v0.18.2","v0.18.1","v0.18.0","v0.17.4","v0.17.3","v0.17.2","v0.17.1","v0.17.0","v0.16.3","v0.16.2","v0.16.1","v0.16.0","v0.15.3","v0.15.2","v0.15.1","v0.15.0","v0.14.3","v0.14.2","v0.14.1","v0.14.0","v0.13.1","v0.13.0","v0.12.2","v0.12.1","v0.12.0","v0.11.2","v0.11.1","v0.11.0","v0.10.0","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.6","v0.7.5","v0.7.4","v0.7.3","0.7.2","v.0.7.1","v0.7.0","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3768.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"}]}