CVE-2026-103288 Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like
Authenticated users can delete other users' comment likes, leading to unauthorized modification of engagement data in Ghost.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-103288?
CVE-2026-103288 is a high-severity missing authorization vulnerability in TryGhost Ghost, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-103288?
3 open source packages ship an affected version, including ghost.
| Package | Affected | Fixed in |
|---|---|---|
ghost Bitnami | From 5.9.0 | 6.44.1 |
ghost npm | From 5.9.0 | 6.44.1 |
ghost npm | From 5.9.0 | 6.44.1 |
How do I fix CVE-2026-103288?
Upgrade ghost to 6.44.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-103288 being exploited?
There is no known exploitation of CVE-2026-103288 in the wild and no public exploit code.
Sources
Also known as BIT-ghost-2026-103288, GHSA-qrh6-cwg3-343x.