CVE-2025-55736 flaskBlog allows arbitrary privilege escalation

Critical 9.3 Published Updated

An arbitrary user can escalate privileges to admin by modifying their role, allowing them to delete users, posts, and comments.

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-2025-55736?

CVE-2025-55736 is a critical 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, an arbitrary user can change his role to "admin", giving its relative privileges (e.g. delete users, posts, comments etc.). The problem is in the routes/adminPanelUsers file.

Weakness: CWE-807, CWE-425

Which versions are affected by CVE-2025-55736?

It affects 1 product.

Products include Dogukanurker Flaskblog.

How do I fix CVE-2025-55736?

No fix has been published for CVE-2025-55736 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-55736 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55736 exists.

Sources

Also known as GHSA-6q83-vfmq-wf72.

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