CVE-2026-24778: Ghost vulnerable to XSS via malicious Portal preview links

January 28, 2026

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.

References

github.com/TryGhost/Ghost
github.com/TryGhost/Ghost/commit/da858e640e88e69c1773a7b7ecdc2008fa143849
github.com/TryGhost/Ghost/security/advisories/GHSA-gv6q-2m97-882h
github.com/advisories/GHSA-gv6q-2m97-882h
nvd.nist.gov/vuln/detail/CVE-2026-24778

Code Behaviors & Features

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