CVE-2025-55734
CVE-2025-55734 is a medium-severity vulnerability in Dogukanurker Flaskblog with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (26th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-25204
- Weakness: CWE-862
- Affected product: Dogukanurker Flaskblog
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-55734?
- 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.
- How severe is CVE-2025-55734?
- CVE-2025-55734 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2025-55734 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-55734?
- CVE-2025-55734 affects Dogukanurker Flaskblog. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-55734?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-55734 have an EU (EUVD) identifier?
- Yes. CVE-2025-55734 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25204.
- When was CVE-2025-55734 published?
- CVE-2025-55734 was published on 2025-08-19 and last updated on 2026-06-17.
References
- https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-h239-vv39-v3vx
- https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-jw79-2xvp-76p8
Affected products (1)
- cpe:2.3:a:dogukanurker:flaskblog:*:*:*:*:*:*:*:*
More vulnerabilities in Dogukanurker Flaskblog
- CVE-2025-28104 — Critical (CVSS 9.1): Incorrect access control in laskBlog v2.6.1 allows attackers to access all usernames via a crafted input.
- CVE-2025-55737 — Medium (CVSS 6.5): flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, when deleting a comment, there's no validation of the…
- CVE-2025-55736 — Medium (CVSS 6.5): flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, an arbitrary user can change his role to "admin",…
- CVE-2025-28101 — Medium (CVSS 6.5): An arbitrary file deletion vulnerability in the /post/{postTitle} component of flaskBlog v2.6.1 allows attackers to…
- CVE-2024-22414 — Medium (CVSS 6.5): flaskBlog is a simple blog app built with Flask. Improper storage and rendering of the `/user/<user>` page allows a…
- CVE-2025-28103 — Medium (CVSS 6.4): Incorrect access control in laskBlog v2.6.1 allows attackers to arbitrarily delete user accounts via a crafted request.
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