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PatchSiren cyber security CVE debrief

CVE-2026-47189 duck-organization CVE debrief

CVE-2026-47189 is a HIGH severity vulnerability in Quest Bot, an open-source modern Discord Bot. The AutoMod remove flow can be exploited to remove rules from a guild where the attacker has Manage Server permissions, by learning the victim guild's AutoMod rule ID through autocomplete. This issue has been patched in version 1.0.5.

Vendor
duck-organization
Product
quest-bot
CVSS
HIGH 8.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of Quest Bot, particularly those with Manage Server permissions, should be aware of this vulnerability and take steps to protect themselves.

Technical summary

The AutoMod remove flow in Quest Bot looks up and deletes rules by global database ID without verifying that the rule belongs to the guild where the command is executed. This allows an attacker to remove rules from another guild where they have Manage Server permissions, if they know the rule ID.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to Quest Bot version 1.0.5 or later.
  • Restrict Manage Server permissions to trusted users.
  • Monitor AutoMod rule changes and logs for suspicious activity.

Evidence notes

CVE-2026-47189 has a CVSS score of 8.3 and is considered HIGH severity. The vulnerability was published on 2026-06-11T19:16:46.637Z and last modified on 2026-06-11T20:58:18.123Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47189 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47189

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47189 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47189

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.