What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-11 · updated 2026-10-26
• Weakness: CWE-116

Description

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 products

• duck-organization quest-bot: before 1.0.3

References

• https://github.com/duck-organization/questbot/releases/tag/questbot-v1.0.3
• https://github.com/duck-organization/questbot/security/advisories/GHSA-vmgg-f3m4-6fcv
• https://github.com/duck-organization/questbot/security/advisories/GHSA-vmgg-f3m4-6fcv

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