Authorization Bypass in MoguBlog Comment Deletion by Moximedia
CVE-2026-89262

8.7HIGH

Key Information:

Vendor

Moxi624

Status
Mogublog
Vendor
CVE Published:
11 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-89262?

MoguBlog versions up to 6.2 are exposed to an authorization bypass vulnerability in the comment deletion endpoint. This vulnerability arises from insufficient ownership checks which rely on request-body fields rather than the authenticated user. As a result, attackers are able to delete arbitrary comments and their associated replies by providing comment UIDs and author UIDs obtained from publicly accessible listing endpoints. This oversight can significantly compromise the integrity of comment management within MoguBlog.

Affected Version(s)

MoguBlog 0 <= 6.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-89262 - Proof of Concept

References

https://github.com/LinYuanyi1/cve-request-poc/blob/master...
exploit
https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e...
technical-description
https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mingsheng Lin
.