CVE-2023-37658

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p32

Published

Jul 11, 2023 (Jul 11, 2023)

Modified

Jun 17, 2026

Description

fast-poster v2.15.0 is vulnerable to Cross Site Scripting (XSS). File upload check binary of img, but without strictly check file suffix at /server/fast.py -> ApiUploadHandler.post causes stored XSS

Vendors: fastposter
Products: fast-poster
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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