CVE Catalog
CVE-2026-72583
MediumCVSS 5.4Summary
A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.
Risk Assessment
An attacker can execute scripts in other users' browsers, potentially leading to session theft, account takeover, or other attacks.
Recommendation
Update fastschema to a version newer than v0.15.1 and strengthen MIME type validation for uploaded files.
Original NVD description (English source)
A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.