CVE-2020-15251: In the Channelmgnt plug-in for Sopel (a Python IRC bot) before version 1.0.3, malicious users are able to op/v

Q: How do I fix CVE-2020-15251?

channelmgnt: upgrade to 1.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2020-15251 being exploited?

CVE-2020-15251 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-15251 affect?

CVE-2020-15251 affects channelmgnt. Severity is high (CVSS 7.7). In the Channelmgnt plug-in for Sopel (a Python IRC bot) before version 1.0.3, malicious users are able to op/voice and take over a channel. This is an ACL bypass vulnerability. This plugin is bundled with MirahezeBot-Plugins with versions f

This month

HIGH 7.7UPGRADE

CVE-2020-15251 is a high-severity flaw (CVSS 7.7) affecting channelmgnt. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the Channelmgnt plug-in for Sopel (a Python IRC bot) before version 1.0.3, malicious users are able to op/voice and take over a channel. This is an ACL bypass vulnerability. This plugin is bundled with MirahezeBot-Plugins with versions from 9.0.0 and less than 9.0.2 affected. Version 9.0.2 includes 1.0.3 of channelmgnt, and thus is safe from this vulnerability. See referenced GHSA-23pc-4339-95vg.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.5% (top 27%)
CISA exploited list	No
Weakness	CWE-863, CWE-862
Published	2020-10-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: mirahezebots

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-10-13 18:15 UTCPublished CVE record published
2026-06-17 02:56 UTCUpdated Record last modified

mirahezebots channelmgnt UPGRADE

Affected: < 1.0.3

Fixed in: 1.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy channelmgnt || rpm -q channelmgnt || channelmgnt --version

2. UPGRADE to 1.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade channelmgnt

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade channelmgnt

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-15251?

channelmgnt: upgrade to 1.0.3. Exact commands for each OS are on this page.

Is CVE-2020-15251 being exploited?

CVE-2020-15251 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-15251 affect?

CVE-2020-15251 affects channelmgnt. Severity is high (CVSS 7.7). In the Channelmgnt plug-in for Sopel (a Python IRC bot) before version 1.0.3, malicious users are able to op/voice and take over a channel. This is an ACL bypass vulnerability. This plugin is bundled with MirahezeBot-Plugins with versions f

How urgent is CVE-2020-15251?

Priority 45/100. High severity

Software pages

Python vulnerabilities

Related CVEs

CVE-2021-21431 HIGH 7.6 UPGRADE sopel-channelmgnt is a channelmgnt plugin for sopel

References

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