CVE-2026-89264: Authorization Bypass Through User-Controlled Key in moxi624 MoguBlog
MoguBlog through 6.2 fails to validate the comment author identity in the POST /web/comment/add endpoint, allowing authenticated users to post comments attributed to any other user. Attackers can supply arbitrary userUid values in the request body to impersonate other accounts including administrators.
AI Analysis
Technical Summary
CVE-2026-89264 describes an authorization bypass vulnerability in MoguBlog through version 6.2. The flaw exists in the POST /web/comment/add endpoint, which fails to properly validate the identity of the comment author. As a result, authenticated users can manipulate the userUid parameter in the request body to impersonate other users, including administrative accounts, when posting comments.
Potential Impact
The vulnerability allows authenticated users to impersonate other users by posting comments under their identity. This can lead to misinformation, abuse of administrative privileges in comment sections, and potential reputational damage. However, it does not directly impact confidentiality or availability according to the CVSS vector.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict comment posting privileges to trusted users and monitor for suspicious comment activity.
CVE-2026-89264: Authorization Bypass Through User-Controlled Key in moxi624 MoguBlog
Description
MoguBlog through 6.2 fails to validate the comment author identity in the POST /web/comment/add endpoint, allowing authenticated users to post comments attributed to any other user. Attackers can supply arbitrary userUid values in the request body to impersonate other accounts including administrators.
CVSS v3.1
Score 4.3medium
Affected software
moxi624
MoguBlog
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-89264 describes an authorization bypass vulnerability in MoguBlog through version 6.2. The flaw exists in the POST /web/comment/add endpoint, which fails to properly validate the identity of the comment author. As a result, authenticated users can manipulate the userUid parameter in the request body to impersonate other users, including administrative accounts, when posting comments.
Potential Impact
The vulnerability allows authenticated users to impersonate other users by posting comments under their identity. This can lead to misinformation, abuse of administrative privileges in comment sections, and potential reputational damage. However, it does not directly impact confidentiality or availability according to the CVSS vector.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict comment posting privileges to trusted users and monitor for suspicious comment activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-11T10:52:56.668Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa41f3091cc7f384856d452
Added to database: 09/11/2026, 15:33:04 UTC
Last enriched: 09/11/2026, 15:48:08 UTC
Last updated: 09/11/2026, 16:40:09 UTC
Views: 5
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