Lektor 3.3.14 and 3.4.0b15 contains a cross-site request forgery vulnerability in the admin API blueprint that allows unauthenticated attackers to perform state-changing actions by sending cross-origin requests without CSRF tokens, Origin/Referer validation, CORS configuration, or Host allowlisting. Attackers can exploit the newattachment, deleterecord, build, clean, and publish endpoints from a malicious web page to write arbitrary files, delete pages, wipe build output, trigger deployment publication, and via DNS rebinding reach read endpoints to disclose data.
History

Fri, 02 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Lektor
Lektor lektor
Vendors & Products Lektor
Lektor lektor

Thu, 01 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Description Lektor 3.3.14 and 3.4.0b15 contains a cross-site request forgery vulnerability in the admin API blueprint that allows unauthenticated attackers to perform state-changing actions by sending cross-origin requests without CSRF tokens, Origin/Referer validation, CORS configuration, or Host allowlisting. Attackers can exploit the newattachment, deleterecord, build, clean, and publish endpoints from a malicious web page to write arbitrary files, delete pages, wipe build output, trigger deployment publication, and via DNS rebinding reach read endpoints to disclose data.
Title Lektor 3.3.14 CSRF via Admin API Endpoints
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-01T18:17:39.168Z

Updated: 2026-10-13T11:20:53.724Z

Reserved: 2026-10-01T18:02:50.081Z

Link: CVE-2026-104059

cve-icon Vulnrichment

Updated: 2026-10-02T15:54:28.124Z

cve-icon NVD

Status : Deferred

Published: 2026-10-01T19:17:19.480

Modified: 2026-10-02T18:47:49.947

Link: CVE-2026-104059

cve-icon Redhat

No data.