Appointment Hour Booking Plugin up to 1.5.94 on WordPress input validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.8 | $0-$5k | 0.90- |
Summary
A vulnerability, which was classified as critical, was found in Appointment Hour Booking Plugin up to 1.5.94. Impacted is an unknown function. The manipulation results in input validation. This vulnerability was named CVE-2026-86475. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.
Details
A vulnerability, which was classified as critical, was found in Appointment Hour Booking Plugin up to 1.5.94. Affected is some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. This is going to have an impact on integrity, and availability. CVE summarizes:
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.
The advisory is available at wpscan.com. This vulnerability is traded as CVE-2026-86475 since 09/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.
Upgrading to version 1.5.95 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Name
Version
- 1.5.0
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.5
- 1.5.6
- 1.5.7
- 1.5.8
- 1.5.9
- 1.5.10
- 1.5.11
- 1.5.12
- 1.5.13
- 1.5.14
- 1.5.15
- 1.5.16
- 1.5.17
- 1.5.18
- 1.5.19
- 1.5.20
- 1.5.21
- 1.5.22
- 1.5.23
- 1.5.24
- 1.5.25
- 1.5.26
- 1.5.27
- 1.5.28
- 1.5.29
- 1.5.30
- 1.5.31
- 1.5.32
- 1.5.33
- 1.5.34
- 1.5.35
- 1.5.36
- 1.5.37
- 1.5.38
- 1.5.39
- 1.5.40
- 1.5.41
- 1.5.42
- 1.5.43
- 1.5.44
- 1.5.45
- 1.5.46
- 1.5.47
- 1.5.48
- 1.5.49
- 1.5.50
- 1.5.51
- 1.5.52
- 1.5.53
- 1.5.54
- 1.5.55
- 1.5.56
- 1.5.57
- 1.5.58
- 1.5.59
- 1.5.60
- 1.5.61
- 1.5.62
- 1.5.63
- 1.5.64
- 1.5.65
- 1.5.66
- 1.5.67
- 1.5.68
- 1.5.69
- 1.5.70
- 1.5.71
- 1.5.72
- 1.5.73
- 1.5.74
- 1.5.75
- 1.5.76
- 1.5.77
- 1.5.78
- 1.5.79
- 1.5.80
- 1.5.81
- 1.5.82
- 1.5.83
- 1.5.84
- 1.5.85
- 1.5.86
- 1.5.87
- 1.5.88
- 1.5.89
- 1.5.90
- 1.5.91
- 1.5.92
- 1.5.93
- 1.5.94
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.8
VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 5.3
CNA Vector (WPScan): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Appointment Hour Booking Plugin 1.5.95
Timeline
09/07/2026 CVE reserved09/16/2026 Advisory disclosed
09/16/2026 VulDB entry created
09/16/2026 VulDB entry last update
Sources
Advisory: wpscan.comStatus: Confirmed
CVE: CVE-2026-86475 (🔒)
GCVE (CVE): GCVE-0-2026-86475
GCVE (VulDB): GCVE-100-405498
Entry
Created: 09/16/2026 08:49Changes: 09/16/2026 08:49 (63)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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