Remote Code Execution in Red Discord Bot

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

5.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N · score source

EPSS

• CVE-2020-15140: 1.16% estimated exploitation activity in the next 30 days; percentile 67.08 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact A RCE exploit has been discovered in the Trivia module: this exploit allows Discord users with specifically crafted usernames to inject code into the Trivia module's leaderboard command. By abusing this exploit, it's possible to perform destructive actions and/or access sensitive information. Patches This critical exploit has been fixed on version 3.3.11. Workarounds Unloading the Trivia module with unload trivia can render this exploit not accessible. We still highly recommend updating to 3.3.11 to completely patch this issue. References https://github.com/Cog-Creators/Red-DiscordBot/pull/4175 For more information If you have any questions or comments about this advisory: Open an issue in Cog-Creators/Red-DiscordBot Over on our Discord server

Published by the source

21 Aug 2020, 16:30 UTC

Last modified by the source

8 Jul 2026, 05:59 UTC

Source last checked

26 Oct 2026, 13:23 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-55j9-849x-26h4

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-55j9-849x-26h4

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2020-15140

Advisory: Remote Code Execution in Red Discord Bot
IDs: CVE-2020-15140, GHSA-55j9-849x-26h4
Record: https://patchnext.com/advisories/cve-2020-15140 (revision 3, source checked 26 Oct 2026, 13:23 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: red-discordbot 3.3.11. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI red-discordbot: affected < 3.3.11; fixed in 3.3.11

## Suggested inspection (read-only)
- `python -m pip show red-discordbot`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on red-discordbot.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-55j9-849x-26h4 (OSV record GHSA-55j9-849x-26h4 lists affected ranges: PyPI red-discordbot >=0 <3.3.11 (fixed))
- Verified: https://github.com/advisories/GHSA-55j9-849x-26h4 (GitHub-reviewed advisory GHSA-55j9-849x-26h4 lists affected ranges: PyPI red-discordbot >=0 <3.3.11)

Commands are suggestions: review each one before running it.