Is CVE-2026-103283 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103283 being exploited in the wild.

How severe is CVE-2026-103283?

High severity, with a CVSS score of 8.1, published 1 October 2026.

Which products and versions are affected?

TryGhost Ghost 6.20.0 to 6.57.0.

Is there a fix for CVE-2026-103283?

Yes: fixed in v6.57.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-103283 attacked?

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

Am I affected by CVE-2026-103283?

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-2026-103283: Ghost session handling authentication bypass via user impersonation

CVE-2026-103283 · Severity: high · CVSS 8.1 · Published 2026-10-01

Ghost is a popular blogging and publishing platform. A session handling bug allows any staff member with valid credentials to impersonate another staff user by bypassing two-factor authentication, granting them full administrative access to the platform without needing the target's 2FA credentials or actual password.

Technologies: TryGhost Ghost. Vendors: TryGhost.

Quick answers

Is CVE-2026-103283 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103283 being exploited in the wild.
How severe is CVE-2026-103283?: High severity, with a CVSS score of 8.1, published 1 October 2026.
Which products and versions are affected?: TryGhost Ghost 6.20.0 to 6.57.0.
Is there a fix for CVE-2026-103283?: Yes: fixed in v6.57.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103283 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-103283?: 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: v6.57.1

Technical details

Ghost versions 6.20.0 through 6.57.0 contain a session management vulnerability (CWE-613: Insufficient Session Expiration) where authenticated staff users can switch to other staff accounts using only a password, without proper session validation or 2FA verification. The vulnerability requires network access and valid staff credentials but no user interaction. An attacker with staff privileges can gain administrative access to other accounts and functions.

Affected products

TryGhost Ghost 6.20.0 to 6.57.0

Timeline

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

References

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