XSS in Tryghost Ghost
CVE-2026-70596
Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin se…
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L.
Affected products
- Tryghost Ghost — versions >= 4.9.0, < 6.54.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-70596?
- CVE-2026-70596 is a medium-severity vulnerability in Tryghost Ghost, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-05.
- How severe is CVE-2026-70596?
- Medium severity. CVSS v3 base score is 4.3 out of 10.