Description
Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been patched in version 1.5.0. Some workarounds are available. Do not pass user input to the `name` parameter, use auto-generated filenames only, and implement strict input validation if `name` must be used.
References (3)
Scores
CVSS v3
9.8
EPSS
0.0022
EPSS Percentile
44.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-22
CWE-1336
Status
published
Products (2)
jugmac00/flask-reuploaded
< 1.5.0
pypi/flask-reuploaded
0 - 1.5.0PyPI
Published
Feb 25, 2026
Tracked Since
Feb 25, 2026