CVE-2026-72583: medium-severity vulnerability in fastschema
fastschema - Stored Cross-Site Scripting via MIME Type Bypass in File Upload
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.3%
exploitation probability
0.3%top 84% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected products
fastschema · fastschemaRelated CVEs — fastschema
In the same product, most dangerous first.