What is CVE-2026-24778?

CVE-2026-24778 is a high-severity vulnerability in Tryghost Ghost, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-01-27.

How severe is CVE-2026-24778?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Tryghost Ghost

CVE-2026-24778

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 execut…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (5.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Tryghost Ghost — versions @tryghost/portal >= 2.29.1, < 2.51.5, @tryghost/portal >= 2.52.0, < 2.57.1, ghost >= 5.43.0, < 5.121.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-gv6q-2m97-882h (x_refsource_CONFIRM)
https://github.com/TryGhost/Ghost/commit/da858e640e88e69c1773a7b7ecdc2008fa143849 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-24778?: CVE-2026-24778 is a high-severity vulnerability in Tryghost Ghost, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-01-27.
How severe is CVE-2026-24778?: High severity. CVSS v3 base score is 8.8 out of 10.