CVE-2025-55736

Name: CVE-2025-55736
Creator: NVD / NIST
Published: 2025-08-19T19:15:37.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2025-55736 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS 4.0

9.3/10

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 Probability

0.25%

15.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dogukanurker	Flaskblog	<= 2.8.0

References

https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-6q83-vfmq-wf72Exploit, Third Party Advisory

Timeline

Published: Aug 19, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-55736?

How severe is CVE-2025-55736?

CVE-2025-55736 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55736?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-55736?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST