TryGhost CLI up to 1.30.0 Rate Limiting proxy_add_x_forwarded_for privileges management

Summaryinfo

A vulnerability was found in TryGhost CLI up to 1.30.0. It has been declared as critical. This affects an unknown function of the component Rate Limiting. Such manipulation of the argument proxy_add_x_forwarded_for leads to privileges management. This vulnerability is listed as CVE-2026-25552. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in TryGhost CLI up to 1.30.0. It has been rated as critical. Affected by this issue is some unknown processing of the component Rate Limiting. The manipulation of the argument proxy_add_x_forwarded_for with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-25552 since 02/02/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 1.30.1 eliminates this vulnerability.

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Productinfo

Vendor

• TryGhost

Name

• CLI

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30.0

CPE 2.3info

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• 🔒
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CPE 2.2info

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• 🔒
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