CVE-2026-121627
Last modified
CVE-2026-121627 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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..
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| jarun | buku | >= 5.0, <= 5.1.1 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-121627?
How severe is CVE-2026-121627?
How do I fix CVE-2026-121627?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-12162Improper host validation in the social login autofill featur…5.5
- CVE-2026-121620CoopCycle coopcycle-web 5.6.0 before 6.20.0 contains a missi…6.5
- CVE-2026-121621A command injection vulnerability was found in Argo CD Image…8.8
- CVE-2026-121624Nanosystems Supremo for Windows and macOS before 5.0.2.3874 …6.8
- CVE-2026-121625GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds…3.7
- CVE-2026-121626GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds…3.7
- CVE-2026-121628Bagisto before 2.3.16 and 2.4.x before 2.4.1 contains a race…3.7
- CVE-2026-12163Fortra File Integrity Monitoring (FIM), formerly Tripwire En…4.8
- CVE-2026-121631Lightdash 0.2609.0 before 3.137.0 contains an authorization …4.2
- CVE-2026-121632Data::MuForm versions through 0.05 for Perl render attribute…
- CVE-2026-121637An improper integrity validation vulnerability in WatchGuard…8.9
- CVE-2026-121638An Improper Certificate Validation vulnerability in WatchGua…9.1
Are you affected by CVE-2026-121627?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST