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2 vulnerabilities found for buku by jarun
CVE-2026-123201 (GCVE-0-2026-123201)
Vulnerability from cvelistv5 – Published: 2026-11-05 18:16 – Updated: 2026-11-09 17:45
VLAI
EPSS
VEX
Title
buku through 5.1.1 SSRF via bukuserver fetch_data and network_handle API
Summary
Buku (bukuserver) through 5.1.1 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server request internal hosts by supplying a url parameter to /api/fetch_data or /api/network_handle. Attackers can target loopback, private, or cloud metadata IP addresses, which pass the weak is_bad_url() check and follow redirects, to discover internal services and read their page titles, descriptions, and keywords.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 17:35 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/jarun/buku/issues/910 | issue-tracking |
| https://github.com/jarun/buku/pull/916 | patchissue-tracking |
| https://github.com/jarun/buku/commit/13f6497afc97… | patch |
| https://github.com/jarun/buku/blob/e232ac357cbba2… | technical-description |
| https://github.com/jarun/buku/blob/e232ac357cbba2… | technical-description |
| https://www.vulncheck.com/advisories/buku-through… | third-party-advisory |
Date Public
2026-11-02 00:00
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CVE-2026-121627 (GCVE-0-2026-121627)
Vulnerability from cvelistv5 – Published: 2026-11-03 17:13 – Updated: 2026-11-09 15:26
VLAI
EPSS
VEX
Title
buku 5.0 through 5.1.1 Stored XSS via bukuserver Bookmark List URL
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 15:25 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/jarun/buku/issues/911 | issue-tracking |
| https://github.com/jarun/buku/blob/v5.1.1/bukuser… | technical-description |
| https://github.com/jarun/buku | product |
| https://www.vulncheck.com/advisories/buku-5.0-thr… | third-party-advisory |
Date Public
2026-11-02 00:00
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