CVE-2021-33563

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p55

Published

May 24, 2021 (May 24, 2021)

Modified

Jun 17, 2026

Description

Koel before 5.1.4 lacks login throttling, lacks a password strength policy, and shows whether a failed login attempt had a valid username. This might make brute-force attacks easier.

Vendors: koel
Products: koel
Weakness: CWE-916
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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