Is CVE-2026-103280 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103280 being exploited in the wild.

How severe is CVE-2026-103280?

Medium severity, with a CVSS score of 5.3, published 1 October 2026.

Which products and versions are affected?

TryGhost Ghost 0.8.0 to 6.22.x.

Is there a fix for CVE-2026-103280?

Yes: fixed in 6.23.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-103280 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-103280?

Check whether you run TryGhost Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-103280: Ghost information disclosure in setup endpoint

CVE-2026-103280 · Severity: medium · CVSS 5.3 · Published 2026-10-01

Ghost, a popular blogging and content management platform, contains a flaw in its setup endpoint that leaks the site owner's email address to anyone on the internet without authentication. An attacker can discover the email address of any Ghost site owner, potentially facilitating phishing attacks or account takeover attempts.

Technologies: TryGhost Ghost. Vendors: TryGhost.

Quick answers

Is CVE-2026-103280 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103280 being exploited in the wild.
How severe is CVE-2026-103280?: Medium severity, with a CVSS score of 5.3, published 1 October 2026.
Which products and versions are affected?: TryGhost Ghost 0.8.0 to 6.22.x.
Is there a fix for CVE-2026-103280?: Yes: fixed in 6.23.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103280 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-103280?: Check whether you run TryGhost Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 6.23.0

Technical details

The setup endpoint in Ghost versions 0.8.0 through 6.22.x fails to require authentication and responds to unauthenticated requests with the site owner's email address (CWE-201). An attacker can make a simple network request to the setup endpoint to extract this sensitive information without any privileges or user interaction. The vulnerability is fixed in version 6.23.0.

Affected products

TryGhost Ghost 0.8.0 to 6.22.x

Timeline

2026-08-13: disclosed
2026-10-01: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.