CVE-2023-38887

What it actually does

The vulnerability permits unauthorized actions or data exposure within the Ghost application due to a flaw addressed in the specified commit.

Why it matters to the business

Organizations using affected versions of Ghost face increased risk of compromise, potential data breaches, and service disruption; the availability of public exploits heightens urgency despite low EPSS and no known ransomware use.

How an attack unfolds

An attacker identifies an unpatched Ghost instance, crafts input to trigger the flaw, and executes malicious actions such as injecting content or accessing restricted functions.

How to fix it

Upgrade tryghost/ghost (GIT) to commit 3b0f99d455c1a4ee0fd233f0fdf732129b83a8f0 or a later version containing the fix.

How to confirm the fix worked

Verify the deployed version includes commit 3b0f99d455c1a4ee0fd233f0fdf732129b83a8f0 and test that the previously vulnerable functionality behaves securely.

Typical attack path

1. Scan for publicly reachable Ghost installations
2. Identify version prior to the fixed commit
3. Send crafted requests exploiting the flaw
4. Achieve unauthorized access or code execution

How to detect it

Examine web server and application logs for anomalous requests targeting Ghost endpoints around the time of publication or later; look for patterns matching known exploit attempts.

What your security team should do

• Prioritize upgrade of all Ghost instances to the fixed commit
• Monitor EPSS trend for rising exploitation likelihood
• Review logs for indicators of prior exploitation attempts