# CVE-2026-89264

## Summary

- **CVE ID:** CVE-2026-89264
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-639
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 11, 2026

## 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.

## Affected Products

- moxi624 — MoguBlog (0)

## References

- [CNA](https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C12_comment_add_author_spoof.py)
- [CNA](https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/CommentRestApi.java)
- [CNA](https://gitee.com/moxi159753/mogu_blog_v2/releases)
- [CNA](https://github.com/moxi624/mogu_blog_v2)
- [CNA](https://www.vulncheck.com/advisories/mogublog-through-6.2-comment-author-spoofing-via-request-body-identity)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._