CVE-2026-47188: Quest Bot: Unban and unwarn reason fields still allow bot-powered mass mentions.

Severity: low (CVSS 2.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% 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 1.0.5, the latest release suppresses mentions in several moderation commands, but /unban and /unwarn still echo user-controlled reason text in public bot messages without allowedMentions. A moderator can use @everyone or @here in the reason and make the bot send a mass ping. This issue has been patched in version 1.0.5.

Affected products

duck-organization quest-bot: before 1.0.5

References

https://github.com/duck-organization/questbot/releases/tag/questbot-v1.0.5
https://github.com/duck-organization/questbot/security/advisories/GHSA-r978-qqg9-vvxw
https://github.com/duck-organization/questbot/security/advisories/GHSA-r978-qqg9-vvxw

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