CVE-2026-47171

HIGH

Quest Bot: Reminder messages allow stored mass mentions through `@everyone` and `@here`

Title source: cna

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.

References (2)

Core 2

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/duck-organization/questbot/security/advisories/GHSA-vmgg-f3m4-6fcv

X_Refsource_Misc x_refsource_misc

https://github.com/duck-organization/questbot/releases/tag/questbot-v1.0.3

Scores

CVSS v4 8.8

EPSS 0.0032

EPSS Percentile 23.9%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-116

Status published

Products (1)

duck-organization/quest-bot < 1.0.3

Published Jun 11, 2026

Tracked Since Jun 12, 2026