{"id":"CVE-2026-121627","published":"2026-11-03T18:17:58.790","lastModified":"2026-11-03T18:17:58.790","description":"buku 5.0 through 5.1.1 contains a stored cross-site scripting vulnerability in the bukuserver bookmark list that allows attackers to execute script via an unescaped bookmark URL in BookmarkModelView._list_entry(). Attackers can submit a URL containing a double quote and event handler through the unauthenticated /api/bookmarks endpoint to issue same-origin API requests with viewers' credentials.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/jarun/buku","tags":[]},{"url":"https://github.com/jarun/buku/blob/v5.1.1/bukuserver/views.py#L133","tags":[]},{"url":"https://github.com/jarun/buku/issues/911","tags":[]},{"url":"https://www.vulncheck.com/advisories/buku-5.0-through-5.1.1-stored-xss-via-bukuserver-bookmark-list-url","tags":[]}],"exploitRefs":[{"url":"https://github.com/jarun/buku","tags":[]},{"url":"https://github.com/jarun/buku/blob/v5.1.1/bukuserver/views.py#L133","tags":[]},{"url":"https://github.com/jarun/buku/issues/911","tags":[]}],"hasPoc":true,"ai":null}