What’s Vulnerable › Vulnerabilities

CVE-2026-103288: Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like

• Severity: medium (CVSS 6.5 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: 2026-10-01 · updated 2026-10-01
• Weakness: CWE-639

Description

Ghost, an open-source publishing platform, contains an input validation flaw in its comment like feature in versions from 5.9.0 before 6.44.1. An authenticated member can delete comment likes or dislikes belonging to other users that they are not authorized to delete, resulting in an authorization bypass and unauthorized modification of comment engagement data.

Affected products

• TryGhost Ghost: from 5.9.0 before 6.44.1 — fixed in 6.44.1

How to fix

Upgrade to a fixed version: TryGhost Ghost 6.44.1. Check the vendor advisory for mitigations.

References

• https://github.com/TryGhost/Ghost/security/advisories/GHSA-qrh6-cwg3-343x
• https://www.vulncheck.com/advisories/ghost-5.9.0-before-6.44.1-authorization-bypass-via-comment-like

Get alerted when CVE-2026-103288 or the next vulnerability affects your stack