CVE Catalog

CVE-2026-11430

HighCVSS 7.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.51%

41th percentile - higher than 41% of all known CVEs

Summary

Grav CMS's scheduler-webhook plugin contains an authentication bypass in the webhook token check. When the webhook feature is enabled but no webhookToken is configured, token validation is skipped, allowing an unauthenticated remote attacker to trigger the operator's already-configured scheduled jobs.

Risk Assessment

An attacker can trigger scheduled jobs in an uncontrolled manner, potentially leading to unintended actions, and if jobs execute system commands, code execution.

Recommendation

Apply the fix or configure a webhookToken to enforce authentication. Restrict access to the endpoint to trusted networks.

Related vulnerabilities

Original NVD description (English source)

Grav CMS's scheduler-webhook plugin contains an authentication bypass in the webhook token check. When the webhook feature is enabled but no webhookToken is configured, a compound conditional short-circuits and skips token validation, so an unauthenticated remote attacker who can reach POST /scheduler/webhook can trigger the operator's already-configured scheduled jobs by sending a single request. The primitive is triggering-existing-jobs, not attacker-chosen command execution: the attacker controls when the jobs run and which one runs (via ?job=), but does not control what the jobs do. Code execution follows only when the operator has configured a job that shells out, and even then the attacker controls timing rather than payload. Not a default-install issue: reaching the endpoint requires the separate scheduler-webhook GPM plugin to be installed, scheduler.modern.webhook.enabled to be true (default false), and no webhookToken to be configured; a stock Grav or Grav-Admin install exposes nothing here.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS