What’s Vulnerable › Vulnerabilities

CVE-2026-25552: Ghost CLI < 1.30.1 IP Spoofing via X-Forwarded-For Header

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-31 · updated 2026-10-23
• Weakness: CWE-348

Description

Ghost CLI before 1.30.1 contains an IP spoofing vulnerability that allows unauthenticated remote attackers to bypass rate-limiting controls by manipulating the X-Forwarded-For header through a misconfigured Nginx configuration. Attackers can append attacker-controlled values to the header chain using the $proxy_add_x_forwarded_for directive to present an arbitrary IP address, circumventing Ghost's rate-limiting mechanisms on self-hosted instances.

Affected products

• TryGhost Ghost-CLI: before 1.30.1 — fixed in 1.30.1

How to fix

Upgrade to a fixed version: TryGhost Ghost-CLI 1.30.1. Check the vendor advisory for mitigations.

References

• https://github.com/TryGhost/Ghost-CLI/security/advisories/GHSA-wjx2-9fpq-8997
• https://www.vulncheck.com/advisories/ghost-cli-ip-spoofing-via-x-forwarded-for-header

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