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GHSA-vmc4-9828-r48r

MediumCVSS 5.1 / 10
Published Jan 8, 2026·Last modified Feb 3, 2026
Affected Components(0)

No affected components available

Description

Impact

A vulnerability in Ghost’s media inliner mechanism allows staff users in possession of a valid authentication token for the Ghost Admin API to exfiltrate data from internal systems via SSRF.

Vulnerable versions

This vulnerability is present in Ghost v5.38.0 to v5.130.5 to and Ghost v6.0.0 to v6.10.3.

Patches

v5.130.6 and v6.11.0 contain a fix for this issue.

References

Ghost thanks Sho Odagiri of GMO Cybersecurity by Ierae, Inc. for discovering and disclosing this vulnerability responsibly.

For more information

If there are any questions or comments about this advisory, email Ghost at security@ghost.org.

Risk Scores
Base Score
5.1

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
1.2

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.27%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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