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ghost 6.65.0: known vulnerabilities

Known vulnerabilities affecting ghost 6.65.0: 5. Compare the fixes below with your installed release.

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Vulnerabilities: 5

  1. CVE-2026-105646

    Medium · CVSS 4.9EPSS 0.33%Fix available

    Ghost: Regular Expression Denial of Service in Content Import

    Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, a crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.

    • Update to 6.67.0
    Published Updated
  2. CVE-2026-105645

    Medium · CVSS 4.9EPSS 0.33%Fix available

    Ghost: Regular Expression Denial of Service in External Media Inliner

    Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.

    • Update to 6.67.0
    Published Updated
  3. CVE-2026-105644

    Medium · CVSS 6.8EPSS 0.32%Fix available

    Ghost: Stored XSS via SVG Files in Content Imports

    Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, SVG images included in content imports were stored without sanitization. An attacker who convinced an Administrator to import a crafted file could host scripts on the site's domain, possibly resulting in compromise of staff users' admin sessions. This issue is fixed in version 6.67.0.

    • Update to 6.67.0
    Published Updated
  4. CVE-2026-105643

    High · CVSS 7.3EPSS 0.27%Fix available

    Ghost: Stored XSS via Embed Card Previews

    Ghost is a Node.js content management system. From version 6.34.0 until 6.67.0, embed cards in the Ghost editor could bypass protections against stored cross-site scripting. Any staff user, including Contributors, could store scripts in post content that ran when another staff user opened the post in the editor, potentially compromising that user’s admin session. Self-hosted sites should leave the new  security.embedPreviewUrl  configuration option at its default value. This issue is fixed in version 6.67.0.

    • Update to 6.67.0
    Published Updated
  5. CVE-2026-105642

    High · CVSS 8.8EPSS 0.25%Fix available

    Ghost: Remote Code Execution via Bookmark Card Images

    Ghost is a Node.js content management system. From 6.56.0 until 6.67.0, an image processing library bundled with Ghost contained a vulnerability in its SVG handling. Any staff user, including Contributors, could create a bookmark card for an attacker-controlled website, resulting in arbitrary commands being run on the Ghost server. This issue is fixed in version 6.67.0.

    • Update to 6.67.0
    Published Updated

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