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CVE-2026-47171

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

HIGH
8.8
CVSS Score
Published: June 11, 2026 at 06:28 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorQuest Bot

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Quest Bot· Duck Organization
90%
v < 1.0.3
Affected range stops below 1.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

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

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-116

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