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

> Attackers can trigger mass mentions via stored reminders, causing notification spam and potential service disruption for Discord server members.

- **Severity:** High 8.8 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jun 2026
- **Updated:** 11 Jun 2026
- **Also known as:** GHSA-vmgg-f3m4-6fcv

## What is CVE-2026-47171?

CVE-2026-47171 is a high-severity vulnerability in duck-organization quest-bot, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2026-47171?


## How do I fix CVE-2026-47171?

No fix has been published for CVE-2026-47171 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-47171 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47171 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47171 and fix it if it is affected.

What it is: CVE-2026-47171 is a high-severity vulnerability in duck-organization quest-bot, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47171 exists.

Affected product: duck-organization quest-bot. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47171/ (Markdown: https://insights.sbomify.com/CVE-2026-47171/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47171
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47171
- OSV: https://osv.dev/vulnerability/CVE-2026-47171

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47171/
Summaries are generated and may contain mistakes; the official description above is the record.