Cross-role moderation via missing hierarchy checks
Published Jun 12, 2026 · Updated Jun 12, 2026
Missing authorization in Vantern Quest Bot before 1.1.6 allows remote authenticated users to moderate higher-ranked Discord users. The ban, kick, mute, unmute, warn, and nickname handlers check only the invoker’s permission bit and whether the bot can act on the target, not whether the invoker outranks that target. Exploitation requires a lower-ranked moderator with the relevant permission and a bot role above the target, enabling bans, kicks, timeouts, warning records, or nickname changes.
Summary
What happened
Missing authorization in Vantern Quest Bot before 1.1.6 allows remote authenticated users to moderate higher-ranked Discord users. The ban, kick, mute, unmute, warn, and nickname handlers check only the invoker’s permission bit and whether the bot can act on the target, not whether the invoker outranks that target. Exploitation requires a lower-ranked moderator with the relevant permission and a bot role above the target, enabling bans, kicks, timeouts, warning records, or nickname changes.
The record
- CVE
- CVE-2026-47197
- Published
- Jun 12, 2026
- Updated
- Jun 12, 2026
- Vendor
- Vantern
- Product
- Quest Bot
- Classifications
- CWE-862, T1531
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 12, 2026CVE publishedPublication date reported by the CVE source.
- Jun 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 1.1.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
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Technologies
Your stack
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Your stack
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