CVE-2025-53631 — flaskBlog XSS Vulnerability in postContent
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 JavaS…
Published: 2025-08-14 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7