CVE-2026-48485 Quest Bot: Stored warn reasons can still trigger bot-powered mass mentions through `/warns`.
Attackers can trigger mass mentions by injecting @everyone into stored warning reasons, causing notification spam via the /warns command.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-48485?
CVE-2026-48485 is a low-severity cross-site scripting vulnerability in duck-organization questbot, published on 12 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, the latest release suppresses mentions when creating, unbanning, unwarning, kicking, muting, and unmuting, but stored warning reasons are still printed by /warns without mention suppression. A moderator can create a warning with @everyone or @here in the reason, then make the bot later output that reason through /warns, causing a mass ping if the bot has permission. This issue has been patched in version 1.1.6.
Weakness: CWE-116
Which versions are affected by CVE-2026-48485?
How do I fix CVE-2026-48485?
No fix has been published for CVE-2026-48485 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-48485 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48485 exists.
Sources
Also known as GHSA-xjm4-8ggw-8jwf.