Executive brief
MoguBlog is an open-source blogging platform. The /web/comment/closeEmailNotification endpoint fails to verify user identity, allowing attackers to remotely disable email notifications for any user account without permission. This could disrupt legitimate users' ability to receive notifications about replies to their comments.
Technical details
The vulnerability is an authentication bypass in the comment notification management endpoint. The /web/comment/closeEmailNotification/{userUid} endpoint fails to perform access control checks, permitting unauthenticated attackers to modify the startEmailNotification flag in the Redis cache for arbitrary user IDs. The endpoint is configured with permitAll in WebSecurityConfig and lacks proper user identity validation in CommentRestApi.java. An attacker can harvest real user UIDs from the public /web/comment/getList endpoint and use them to disable notifications for any target user. The fix involves adding authentication checks and authorization logic to verify that only users can modify their own notification settings.
Affected products
- MoguBlog MoguBlog through 6.2
Timeline
- 2026-09-11: disclosed