CVE-2026-89264 MoguBlog through 6.2 Comment Author Spoofing via Request-Body Identity
Authenticated users can spoof comment authorship by manipulating request body parameters, allowing impersonation of other users including administrators.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89264?
CVE-2026-89264 is a medium-severity missing authorization vulnerability in moxi624 MoguBlog, published on 11 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-89264?
How do I fix CVE-2026-89264?
No fix has been published for CVE-2026-89264 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-89264 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89264 exists.
Sources
Also known as GHSA-7hrx-vv78-95j8.