CVE-2021-21431

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

sopel-channelmgnt is a channelmgnt plugin for sopel. In versions prior to 2.0.1, on some IRC servers, restrictions around the removal of the bot using the kick/kickban command could be bypassed when kicking multiple users at once. We also believe it may have been possible to remove users from other channels but due to the wonder that is IRC and following RfCs, We have no POC for that. Freenode is not affected. This is fixed in version 2.0.1. As a workaround, do not use this plugin on networks where TARGMAX > 1.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:H

Weakness enumeration

CWE-20 CWE-284

Affected software

No affected versions have been published.

Timeline

Published: Apr 9, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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