CVE-2025-55734 flaskBlo Authorization Bypass
Unauthorized users can access admin subroutes to view sensitive post and comment data due to missing role checks.
- 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-2025-55734?
CVE-2025-55734 is a medium-severity missing authorization vulnerability in DogukanUrker FlaskBlog, published on 19 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, the code checks if the userRole is "admin" only when visiting the /admin page, but not when visiting its subroutes. Specifically, only the file routes/adminPanel.py checks the user role when a user is trying to access the admin page, but that control is not done for the pages routes/adminPanelComments.py and routes/adminPanelPosts.py. Thus, an unauthorized user can bypass the intended restrictions, leaking sensitive data and accessing the following pages: /admin/posts, /adminpanel/posts, /admin/comments, and /adminpanel/comments.
Weakness: CWE-862
Which versions are affected by CVE-2025-55734?
It affects 1 product.
Products include Dogukanurker Flaskblog.
How do I fix CVE-2025-55734?
No fix has been published for CVE-2025-55734 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-2025-55734 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55734 exists.