Vulnerability Description
Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially leading to account takeover. Ghost Portal versions 2.29.1 through 2.51.4 and 2.52.0 through 2.57.0 were vulnerable to this issue. Ghost automatically loads the latest patch of the members Portal component via CDN. For Ghost 5.x users, upgrading to v5.121.0 or later fixes the vulnerability. v5.121.0 loads Portal v2.51.5, which contains the patch. For Ghost 6.x users, upgrading to v6.15.0 or later fixes the vulnerability. v6.15.0 loads Portal v2.57.1, which contains the patch. For Ghost installations using a customized or self-hosted version of Portal, it will be necessary to manually rebuild from or update to the latest patch version.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ghost | Ghost | >= 5.43.0, < 5.121.0 |
| Ghost | Portal | >= 2.29.1, < 2.51.5 |
Related Weaknesses (CWE)
References
- https://github.com/TryGhost/Ghost/commit/da858e640e88e69c1773a7b7ecdc2008fa14384Patch
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-gv6q-2m97-882hVendor Advisory
FAQ
What is CVE-2026-24778?
CVE-2026-24778 is a vulnerability with a CVSS score of 8.8 (HIGH). Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authentic...
How severe is CVE-2026-24778?
CVE-2026-24778 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-24778?
Check the references section above for vendor advisories and patch information. Affected products include: Ghost Ghost, Ghost Portal.