CVE-2026-103275: Observable Discrepancy in TryGhost Ghost
Ghost 5.42.2 before 6.58.0 contains an information disclosure vulnerability in the Admin API bulk post and page edit and delete endpoints, which accept filters on restricted fields such as authors.password, because of an incomplete fix for CVE-2026-70590. Staff-level attackers can infer other staff users' password hashes from which filters match and perform offline password-guessing attacks against them.
AI Analysis
Technical Summary
CVE-2026-103275 affects Ghost versions >=5.42.2 and <6.58.0. The vulnerability arises because the Admin API bulk post and page edit and delete endpoints accept filters on restricted fields like authors.password. This is due to an incomplete remediation of CVE-2026-70590. As a result, staff-level attackers can determine which password hashes correspond to other staff users by observing filter matches, facilitating offline password-guessing attacks against those hashes.
Potential Impact
The vulnerability allows staff-level attackers to infer password hashes of other staff users by exploiting filter acceptance on restricted fields. This information disclosure can lead to offline password-guessing attacks, potentially compromising staff user accounts. There is no indication of remote code execution or privilege escalation beyond staff-level access. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in Ghost version 6.58.0 and later. Users should upgrade to version 6.58.0 or above to remediate this vulnerability. Until upgraded, restrict staff-level access to trusted users only. Patch status is confirmed by the affected version range indicating the fix in 6.58.0.
CVE-2026-103275: Observable Discrepancy in TryGhost Ghost
Description
Ghost 5.42.2 before 6.58.0 contains an information disclosure vulnerability in the Admin API bulk post and page edit and delete endpoints, which accept filters on restricted fields such as authors.password, because of an incomplete fix for CVE-2026-70590. Staff-level attackers can infer other staff users' password hashes from which filters match and perform offline password-guessing attacks against them.
CVSS v4.0
Score 5.3medium
Affected software
TryGhost
Ghost
pkg:github/tryghost/GhostRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103275 affects Ghost versions >=5.42.2 and <6.58.0. The vulnerability arises because the Admin API bulk post and page edit and delete endpoints accept filters on restricted fields like authors.password. This is due to an incomplete remediation of CVE-2026-70590. As a result, staff-level attackers can determine which password hashes correspond to other staff users by observing filter matches, facilitating offline password-guessing attacks against those hashes.
Potential Impact
The vulnerability allows staff-level attackers to infer password hashes of other staff users by exploiting filter acceptance on restricted fields. This information disclosure can lead to offline password-guessing attacks, potentially compromising staff user accounts. There is no indication of remote code execution or privilege escalation beyond staff-level access. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in Ghost version 6.58.0 and later. Users should upgrade to version 6.58.0 or above to remediate this vulnerability. Until upgraded, restrict staff-level access to trusted users only. Patch status is confirmed by the affected version range indicating the fix in 6.58.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-30T10:59:00.638Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abe7495a43b0b3b89bd1d0b
Added to database: 10/01/2026, 14:56:21 UTC
Last enriched: 10/01/2026, 15:23:33 UTC
Last updated: 10/01/2026, 19:41:32 UTC
Views: 3
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