CVE-2025-55737: flaskblog — Exploit

Description

flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, when deleting a comment, there's no validation of the ownership of the comment. Every user can delete an arbitrary comment of another user on every post, by simply intercepting the delete request and changing the commentID. The code that causes the problem is in routes/post.py.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-639 CWE-639

Affected Products

Vendor	Product	Versions
dogukanurker	flaskblog	< 2.8.0

References

Exploits

https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-6hp9-jv2f-88wr

Frequently Asked Questions

What is CVE-2025-55737? +

flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, when deleting a comment, there's no validation of the ownership of the comment. Every user can delete an arbitrary comment of another user on every post, by simply intercepting the delete request and changing the commentID. The code that causes the problem is in routes/post.py. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-55737? +

CVE-2025-55737 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-55737? +

CVE-2025-55737 affects products from dogukanurker, specifically: flaskblog. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-55737? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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