CVE-2026-86475 json
Appointment Hour Booking < 1.5.95 - Unauthenticated Booking Capacity Bypass via Multi-Appointment Submission
published 2026-09-16 54 d ago modified 2026-09-16 53 d ago also EUVD-2026-80220
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
The Appointment Hour Booking WordPress plugin before 1.5.95 does not check every appointment in a booking submission against the capacity configured for its own slot, allowing unauthenticated visitors to take slots that are already fully booked.
Patch / fix
- Unknown Appointment Hour Booking 1.5.95
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 53 d ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/b7b45dae-bc91-4142-ae9b-5c8b39791cda/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- Unknown Appointment Hour Booking
Classification
- Weakness
-
- CWE-20 Improper Input Validation
- Technology feeds
References
-
wpscan.com
/vulnerability/b7b45dae-bc91-4142-ae9b-5c8b39791cda/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-86475
- NVD CVE-2026-86475
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.