CVE-2026-105643

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Source
https://cve.org/CVERecord?id=CVE-2026-105643
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105643.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-105643
Aliases
Related
GHSA (2)
Published
2026-10-05T18:48:31Z
Modified
2026-10-08T02:30:53Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Ghost: Stored XSS via Embed Card Previews
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-653",
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105643.json"
}
References

Affected packages

Git / github.com/tryghost/ghost

Affected ranges

Type
GIT
Repo
https://github.com/tryghost/ghost
Events
Introduced
10da09186253d7be24698d3a5512c7f9cbea13a4
Fixed
4cb7e7956356a47e2c2c240588ef32ecd9fddeaa
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "6.34.0"
        },
        {
            "fixed": "6.67.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v6.*
v6.34.0
v6.35.0
v6.36.0
v6.37.0
v6.37.1
v6.38.0
v6.39.0
v6.40.0
v6.41.0
v6.41.1
v6.42.0
v6.43.0
v6.43.1
v6.44.0
v6.44.1
v6.45.0
v6.46.0
v6.47.0
v6.48.0
v6.49.0
v6.50.0
v6.51.0
v6.52.0
v6.52.1
v6.53.0
v6.54.0
v6.54.1
v6.55.0
v6.56.0
v6.57.0
v6.57.1
v6.58.0
v6.59.0
v6.60.0
v6.61.0
v6.62.0
v6.63.0
v6.64.0
v6.65.0
v6.66.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105643.json"