CVE-2026-104059

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/mansurmavlankulov/c7683e3204e84892e442b0196585d5bb
https://www.vulncheck.com/advisories/lektor-csrf-via-admin-api-endpoints

Configurations

No configuration.

History

01 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 19:17

Updated : 2026-10-02 18:47

NVD link : CVE-2026-104059

Mitre link : CVE-2026-104059

CVE.ORG link : CVE-2026-104059

JSON object : View

Products Affected

No product.

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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