Medium severity · published Oct 1, 2026
CVE-2026-103282
Ghost 0.5.0 before 6.23.0 Multiple Account Creation via Invite Token
4.3
CVSS
0.1%
EPSS
No
On KEV
Description
Ghost versions 0.5.0 before 6.23.0 contain a concurrency issue in the staff invitation acceptance mechanism that allows multiple accounts to be created from a single invite token. Attackers can exploit this race condition by submitting concurrent requests with the same invitation token to create duplicate user accounts.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
0.5.0 before 6.23.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103282
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103282
vendor-advisory
https://github.com/TryGhost/Ghost/security/advisories/GHSA-vf9h-87xm-g767
third-party-advisory
https://www.vulncheck.com/advisories/ghost-0.5.0-before-6.23.0-multiple-account-creation-via-invite-token
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