Patch Forecast
Yellow warning
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CVE-2026-104059

Lektor 3.3.14 and 3.4.0b15 contains a cross-site request forgery vulnerability in the admin API…

Risk score
54/100
CVSS
8.1 v3.1
Exploit chance (30 days)
0.1%
Published
1 Oct 2026

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What to know

What it is
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 expl…
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 8.1 high
  • Remotely exploitable without logging in

References

Original 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.

Last activity 1 Oct 2026. Patch Forecast updates every hour.