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PatchSiren cyber security CVE debrief

CVE-2026-47173 duck-organization CVE debrief

CVE-2026-47173 is a vulnerability in Quest Bot, an open-source modern Discord Bot. A normal user can create a ticket with a reason containing @everyone, @here, user mentions, or role mentions. When the ticket is created, the bot posts the attacker-controlled reason into the new ticket channel without suppressing mentions. If the bot has permission to use those mentions, the attacker can make the bot ping staff or everyone with access to the ticket channel. This issue has been patched in version 1.0.3.

Vendor
duck-organization
Product
quest-bot
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-12
Advisory published
2026-06-11
Advisory updated
2026-06-12

Who should care

Users of Quest Bot prior to version 1.0.3, administrators of Discord servers using Quest Bot, and security teams monitoring for potential ping-based attacks.

Technical summary

The vulnerability allows unauthenticated users to create tickets with malicious mentions. When the ticket is created, the bot posts the attacker-controlled reason into the new ticket channel without suppressing mentions, potentially pinging staff or everyone with access to the channel.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update Quest Bot to version 1.0.3 or later.
  • Review and restrict bot permissions to prevent unnecessary mentions.
  • Monitor ticket creation and bot activity for suspicious behavior.

Evidence notes

CVE-2026-47173 has a CVSS score of 6.3 and is classified as MEDIUM severity. The vulnerability was published on 2026-06-11T19:16:45.403Z and modified on 2026-06-12T15:16:28.670Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47173 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47173

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

  • CVE-2026-47173 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47173

    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.