Unrated severityNVD Advisory· Published Aug 14, 2025· Updated Aug 14, 2025
flaskBlog XSS Vulnerability in postContent
CVE-2025-53631
Description
flaskBlog is a blog app built with Flask. In versions 2.8.1 and prior, improper sanitization of postContent when submitting POST requests to /createpost leads to arbitrary JavaScript execution (XSS) on all pages the post is reflected on including /, /post/[ID], /admin/posts, and /user/[ID] of the user that made the post. At time of publication, there are no public patches available.
Affected products
2- DogukanUrker/flaskBlogv5Range: <= 2.8.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/DogukanUrker/flaskBlog/security/advisories/GHSA-cj43-h8qf-7rw7mitrex_refsource_CONFIRM
News mentions
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