CVE-2026-24778: high-severity vulnerability in TryGhost Ghost
Ghost vulnerable to XSS via malicious Portal preview links
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.3%
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
TryGhost · GhostRelated CVEs — TryGhost Ghost
In the same product, most dangerous first.
CVE-2026-26980CRITICALGhost has a SQL Injection in its Content APIEPSS 71.1%CVE-2023-40028MEDIUMArbitrary file read via symlinks in GhostEPSS 69.0%CVE-2023-31133HIGHGhost vulnerable to disclosure of private API fieldsEPSS 45.7%CVE-2021-29484MEDIUMDOM XSS in Theme PreviewEPSS 7.9%CVE-2026-29053HIGHGhost Vulnerable to Remote Code Execution via Malicious ThemesEPSS 4.9%CVE-2026-22594HIGHGhost has Staff 2FA bypassEPSS 1.3%