CVE-2026-89263 MoguBlog through 6.2 Missing Authentication on the Comment Email-Notification Endpoint
Unauthenticated attackers can disable email notifications for arbitrary users by accessing an unprotected endpoint, requiring a patch to enforce authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89263?
CVE-2026-89263 is a medium-severity missing authorization vulnerability in moxi624 MoguBlog, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MoguBlog through 6.2 fails to authenticate requests to the /web/comment/closeEmailNotification endpoint, allowing unauthenticated attackers to disable email notifications for arbitrary users. Remote callers can modify the startEmailNotification flag in Redis cache for any user identifier to suppress reply notifications without authorization.
Weakness: CWE-306
Which versions are affected by CVE-2026-89263?
How do I fix CVE-2026-89263?
No fix has been published for CVE-2026-89263 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-2026-89263 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89263 exists.
Sources
Also known as GHSA-9f43-fmc5-62gf.