Ghost vulnerability

Ghost versions 1.18.0 before 6.27.0 contain a server-side request forgery vulnerability in the webhooks feature that allows staff users to probe internal hosts. Attackers with staff privileges can craft webhook requests to access internal network resources from the Ghost server.

Published 1 Oct 2026Updated 6 Oct 20262 sources
CVSS 5.1

What happened

Ghost versions 1.18.0 before 6.27.0 contain a server-side request forgery vulnerability in the webhooks feature that allows staff users to probe internal hosts. Attackers with staff privileges can craft webhook requests to access internal network resources from the Ghost server.

Affected versions

Ghost: 1.18.0 through before 6.27.0 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.