CVE-2025-55734— flaskBlo Authorization Bypass
Quick assessment
Affected
DogukanUrker FlaskBlog
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
FlaskBlog是Doğukan Ürker个人开发者的一个使用 Flask 构建的简单博客应用程序。 FlaskBlog 2.8.0及之前版本存在安全漏洞，该漏洞源于未检查用户角色，可能导致绕过访问控制。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2025-55734
Vulnerability Information
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Vulnerability Title
flaskBlo Authorization Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
FlaskBlog 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FlaskBlog是Doğukan Ürker个人开发者的一个使用 Flask 构建的简单博客应用程序。 FlaskBlog 2.8.0及之前版本存在安全漏洞，该漏洞源于未检查用户角色，可能导致绕过访问控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| DogukanUrker | FlaskBlog | <= 2.8.0 | - |
|
II. Public POCs for CVE-2025-55734
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · DogukanUrker · 2025-08-19 · 4 CVEs total
| CVE-2025-55735 | flaskBlog Stored XSS Vulnerability | |
| CVE-2025-55736 | flaskBlog allows arbitrary privilege escalation | |
| CVE-2025-55737 | flaskBlog arbitrary comment delete |
IV. Related Vulnerabilities
Same product: FlaskBlog
Same vendor: DogukanUrker
Same weakness: CWE-862
-
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CVE-2026-55064
Vikunja incomplete fix for CVE-2026-35595: Write-only user c -
CVE-2026-82279
HyperDX Team Management Operations Missing Role-Based Access
V. Comments for CVE-2025-55734
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