Vulnerability Description
flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, when creating a post, there's no validation of the content of the post stored in the variable "postContent". The vulnerability arises when displaying the content of the post using the | safe filter, that tells the engine to not escape the rendered content. This can lead to a stored XSS inside the content of the post. The code that causes the problem is in template/routes.html.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dogukanurker | Flaskblog | <= 2.8.0 |
Related Weaknesses (CWE)
References
- https://github.com/DogukanUrker/FlaskBlog/security/advisories/GHSA-gj9v-qhc3-gcfExploitThird Party Advisory
FAQ
What is CVE-2025-55735?
CVE-2025-55735 is a vulnerability with a CVSS score of 5.4 (MEDIUM). flaskBlog is a blog app built with Flask. In 2.8.0 and earlier, when creating a post, there's no validation of the content of the post stored in the variable "postContent". The vulnerability arises wh...
How severe is CVE-2025-55735?
CVE-2025-55735 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-55735?
Check the references section above for vendor advisories and patch information. Affected products include: Dogukanurker Flaskblog.