How severe is CVE-2025-28104?

CVE-2025-28104 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-28104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-28104?

CVE-2025-28104 affects Dogukanurker Flaskblog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-28104?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-28104 have an EU (EUVD) identifier?

Yes. CVE-2025-28104 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12356.

When was CVE-2025-28104 published?

CVE-2025-28104 was published on 2025-04-21 and last updated on 2026-06-17.

CVE-2025-28104

CVE-2025-28104 is a critical-severity vulnerability in Dogukanurker Flaskblog with a CVSS 3.x base score of 9.1. 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12356
Weakness: CWE-284
Affected product: Dogukanurker Flaskblog
Published: 2025-04-21
Last modified: 2026-06-17

Description

Incorrect access control in laskBlog v2.6.1 allows attackers to access all usernames via a crafted input.

Frequently asked questions

What is CVE-2025-28104?: Incorrect access control in laskBlog v2.6.1 allows attackers to access all usernames via a crafted input.
How severe is CVE-2025-28104?: CVE-2025-28104 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-28104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-28104?: CVE-2025-28104 affects Dogukanurker Flaskblog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-28104?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-28104 have an EU (EUVD) identifier?: Yes. CVE-2025-28104 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12356.
When was CVE-2025-28104 published?: CVE-2025-28104 was published on 2025-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dogukanurker:flaskblog:2.6.1:*:*:*:*:*:*:*

More vulnerabilities in Dogukanurker Flaskblog

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…
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CVE-2025-55734 — Medium (CVSS 6.5): flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, the code checks if the userRole is "admin" only when…
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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