---
id: CVE-2026-89264
title: >-
  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
summary: >-
  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 re…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-639
vendor: moxi624
product: MoguBlog
affected:
  - MoguBlog <= 6.2
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T17:35:21.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89264'
references:
  - url: 'https://gitee.com/moxi159753/mogu_blog_v2/releases'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C12_comment_add_author_spoof.py
    label: disclosure@vulncheck.com
  - url: 'https://github.com/moxi624/mogu_blog_v2'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/CommentRestApi.java
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mogublog-through-6.2-comment-author-spoofing-via-request-body-identity
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T16:08:08.215790Z'
ingestedAt: '2026-09-11T16:45:47.862Z'
epss: 0.00213
epssPercentile: 0.11918
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.