GHSA-354h-gmhv-mr9c Ghost: Server-Side Request Forgery in Webhook Trigger

• npm ghost: >= 1.18.0, < 6.27.0 → fixed in 6.27.0

Impact An SSRF vulnerability in the webhooks feature allowed staff users to probe internal hosts from the Ghost server. Vulnerable versions This vulnerability is present in Ghost from v1.18.0 up to v6.27.0. Patches v6.27.0 contains a fix for this issue. How to update For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here. If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here. References Ghost thanks 0xkakash1, rooks00, l3tchupkt, Wernerina, [email protected], and Mohamed Bassia for disclosing this vulnerability responsibly. For more information If you have any questions or comments about this advisory, email us at [email protected].