CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-89264
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.
Severity
CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
- CWE
- CWE-639
- Published
- Modified
- Record from
- the NVD, synced
References
- https://gitee.com/moxi159753/mogu_blog_v2/releases
- https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C12_comment_add_author_spoof.py
- https://github.com/moxi624/mogu_blog_v2
- https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/CommentRestApi.java
- https://www.vulncheck.com/advisories/mogublog-through-6.2-comment-author-spoofing-via-request-body-identity