OCTOBER 6, 2026
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Case File

CVE-2026-105643

HIGH · CVSS 7.3 EPSS 0.26% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-10-05 · Last synced 2026-10-06

CyberRota Analysis

AI-Generated

Ghost, a Node.js content management system, is vulnerable to stored cross-site scripting (XSS) attacks in versions 6.34.0 to 6.67.0, allowing any staff user to inject malicious scripts into post content. This could lead to the compromise of other staff users' admin sessions when they access the affected posts in the editor. Organizations using self-hosted instances of Ghost should prioritize upgrading to version 6.67.0 or later to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-105643
Severity
HIGH
CVSS
7.3
EPSS
0.26%

Original NVD Description

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.