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HIGH severity

CVE-2026-103272 — TryGhost

HIGH

CVE-2026-103272 is a high-severity (CVSS 7.5) CWE-203 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

Ghost versions from 2.10.0 before 6.63.0 contain a staff enumeration vulnerability in the content API that allows unauthenticated attackers to leak user data. Attackers can observe…

Published
Oct 1, 2026
Updated
Oct 1, 2026
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Oct 1, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Ghost versions from 2.10.0 before 6.63.0 contain a staff enumeration vulnerability in the content API that allows unauthenticated attackers to leak user data. Attackers can observe discrepancies in API metadata responses to enumerate staff members and extract sensitive information without authentication.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-103272 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Ghost versions from 2.10.0 before 6.63.0 contain a staff enumeration vulnerability in the content API that allows unauthenticated attackers to leak user data. Attackers can observe discrepancies in API metadata responses to enumerate staff members and extract sensitive information without authentication.
O3 Security · Impact-Aware SCA

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