Quest Bot: Reminder messages allow stored mass mentions through `@everyone` and `@here`
CVE-2026-47171

8.8HIGH

Key Information:

Vendor

Duck-organization

Status
Quest-bot
Vendor
CVE Published:
11 June 2026

What is CVE-2026-47171?

Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, a normal user can create a reminder whose message contains @everyone or @here. When the reminder triggers, the bot sends the stored message back into the channel without suppressing mass mentions. If the bot has permission to mention everyone, the reminder can ping the entire server or channel later. This issue has been patched in version 1.0.3.

Affected Version(s)

quest-bot < 1.0.3

References

https://github.com/duck-organization/questbot/security/ad...
x_refsource_CONFIRM
https://github.com/duck-organization/questbot/releases/ta...
x_refsource_MISC

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.