MEDIUMCVSS v3.1 6.1Vulnerability

CVE-2026-121627

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.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-03T21:24:30.963596+00:00
Cvss score
6.1
Cvss severity
MEDIUM
Retrieved at
2026-11-03T21:25:36+00:00
Score
6.1
Last source
NVD
Cvss version
3.1
Cve id
CVE-2026-121627
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
First seen by Signal
2026-11-03T21:21:12+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published at
2026-11-03T18:17:58.790
Last modified
2026-11-03T18:17:58.790

Related Entities (1)

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CVE-2026-121627 (CVSS v3.1 6.1) — Ninja Signal Threat Intelligence | Ninja Signal