Which versions of Python are affected by CVE-2025-55736?

Organizations using flaskBlog face critical risk from CVE-2025-55736 rated CVSS 9.3.

Is there a public PoC exploit available for CVE-2025-55736?

Yes, a public proof-of-concept exploit is available for CVE-2025-55736. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-55736?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Python CVE-2025-55736

Q: What is the CVSS score of CVE-2025-55736?

CVE-2025-55736 has a CVSS 4.0 base score of 9.3 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

CRITICAL

Direct Request ('Forced Browsing') (CWE-425)

2025-08-19 security-advisories@github.com

Python Information Disclosure Flaskblog

9.3

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.3 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:07 vuln.today

PoC Detected

Aug 22, 2025 - 20:56 vuln.today

Public exploit code

CVE Published

Aug 19, 2025 - 19:15 nvd

CRITICAL 9.3

DescriptionGitHub Advisory

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.

AnalysisAI

flaskBlog is a blog app built with Flask. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-425. 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. Affected products include: Dogukanurker Flaskblog.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-55736 vulnerability details – vuln.today

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