DogukanUrker FlaskBlog up to 2.8.0 /admin authorization

Summaryinfo

A vulnerability marked as problematic has been reported in DogukanUrker FlaskBlog up to 2.8.0. The affected element is an unknown function of the file /admin. Performing a manipulation results in authorization. This vulnerability is reported as CVE-2025-55734. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in DogukanUrker FlaskBlog up to 2.8.0. It has been classified as problematic. This affects an unknown code of the file /admin. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-55734 since 08/15/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/23/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• DogukanUrker

Name

• FlaskBlog

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8.0

Website

• Product: https://github.com/DogukanUrker/FlaskBlog/

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