CVE-2026-89264

MEDIUM 4.3

MoguBlog through 6.2 Comment Author Spoofing via Request-Body Identity

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	moxi624
Product	mogublog
Published	Sep 11, 2026
Last Updated	Sep 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

moxi624 / MoguBlog

0 ≤ 6.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 Mingsheng Lin