Improper Input Validation in sopel-plugins.channelmgnt
Impact
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.
Patches
Upgrade to 2.0.1 or higher
Workarounds
Do not use this plugin on networks where TARGMAX > 1.
For more information
If you have any questions or comments about this advisory:
- Open an issue on phab.
- Email us at staff(at)mirahezebots(dot)org
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | sopel-plugins-channelmgnt | < 2.0.1 | 2.0.1 |
References
- https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m
- https://pypi.org/project/sopel-plugins.channelmgnt/
- https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856
- https://nvd.nist.gov/vuln/detail/CVE-2021-21431
- https://github.com/MirahezeBots/sopel-channelmgnt/commit/643388365f28c5cc682254ab913c401f0e53260a
- https://github.com/MirahezeBots/sopel-channelmgnt
- https://github.com/pypa/advisory-database/tree/main/vulns/sopel-plugins-channelmgnt/PYSEC-2021-58.yaml
- https://pypi.org/project/sopel-plugins.channelmgnt
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:H- Weakness (CWE)
CWE-20, CWE-284- Platform
- Python (PyPI)
- Package
sopel-plugins-channelmgnt- Disclosed
- 09.04.2021
- Updated
- 11.10.2026 14:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2021-58 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-23c7-6444-399m - CC BY 4.0
Vulnerability history: sopel-plugins-channelmgnt
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 10.2020 04.2021
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2020: 1
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
-
Improper Input Validation in sopel-plugins.channelmgnt this entry
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