All vulnerabilities
CVE-2026-103288GHSA-qrh6-cwg3-343x

Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like

TryGhost GhostApplications & CMS
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.44.1Fixed versionCVE List
Published1 Oct 2026Updated 1 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Ghost, an open-source publishing platform, contains an input validation flaw in its comment like feature in versions from 5.9.0 before 6.44.1. An authenticated member can delete comment likes or dislikes belonging to other users that they are not authorized to delete, resulting in an authorization bypass and unauthorized modification of comment engagement data.

Text from CVE List

Affected versions 2

  • Ghostaffected: 5.9.0 before 6.44.1CVE List
  • Ghostunaffected: 6.44.1CVE List

References 2