CVE-2026-47189: Quest Bot authorization bypass in AutoMod rule removal

CVE-2026-47189 · Severity: info · CVSS 8.3 · Published 2026-06-11

Quest Bot is an open-source Discord bot used for server moderation and utility tasks. A security flaw allows users to delete moderation rules (such as blocked words) from servers they do not manage. By exploiting this, an attacker can disable a community's automated defenses, potentially leading to unmoderated content or harassment.

Technologies: Duck-Organization Quest Bot. Vendors: Duck-Organization.

Quick answers

Is CVE-2026-47189 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47189 being exploited in the wild.
How severe is CVE-2026-47189?
Informational severity, with a CVSS score of 8.3, published 11 June 2026.
Which products and versions are affected?
Duck-Organization Quest Bot <= 1.0.4.
Is there a fix for CVE-2026-47189?
A patch was published on 2026-05-18: Version 1.0.5 released with fix. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-47189 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-47189?
Check whether you run Duck-Organization Quest Bot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An authorization bypass exists in the AutoMod removal flow of Quest Bot due to insecure direct object references (IDOR). The bot's autocomplete handler for the '/automod remove' command leaks global database IDs for moderation rules to any user, regardless of their permissions in the victim guild. The removal handler then deletes rules based on these global IDs without verifying that the rule belongs to the guild where the command is being executed. An attacker with 'Manage Server' permissions in any guild can use a leaked ID to delete rules from a different victim guild. This issue is fixed in version 1.0.5 by implementing guild-ownership checks during the deletion process.

Affected products

  • duck-organization Quest Bot <= 1.0.4

Timeline

  • 2026-05-18: patched: Version 1.0.5 released with fix.
  • 2026-06-11: disclosed: CVE-2026-47189 published.

References

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