Unauthenticated capacity bypass via multi-appointment submission
Published Sep 16, 2026 · Updated Sep 16, 2026
Capacity-validation bypass in CodePeople Appointment Hour Booking before 1.5.95 allows remote attackers to overbook full slots. The booking-submission handler fails to compare every submitted appointment with the capacity configured for that appointment's own time slot. No account is required; a crafted multi-appointment submission can consume availability beyond an administrator's configured limit.
Summary
What happened
Capacity-validation bypass in CodePeople Appointment Hour Booking before 1.5.95 allows remote attackers to overbook full slots. The booking-submission handler fails to compare every submitted appointment with the capacity configured for that appointment's own time slot. No account is required; a crafted multi-appointment submission can consume availability beyond an administrator's configured limit.
The record
- CVE
- CVE-2026-86475
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Vendor
- CodePeople
- Product
- Appointment Hour Booking
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 16, 2026CVE publishedPublication date reported by the CVE source.
- Sep 16, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.5.95
What conditions does exploitation require?
What is affected?
Published CVSS scores
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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.
Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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