CVE-2026-86475— Appointment Hour Booking < 1.5.95 - Unauthenticated Booking Capacity Bypass via Multi-Appointment Submission
Quick assessment
Affected
Unknown Appointment Hour Booking
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Appointment Hour Booking WordPress 插件在 1.5.95 版本之前，未对预约提交中的每一项预约与其对应时间段的已配置容量进行校验，这使得未认证的访问者能够占用那些已经满员的时间段。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unknown | Appointment Hour Booking | < 1.5.95 |
affected |
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I. Basic Information for CVE-2026-86475
Vulnerability Information
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Vulnerability Title
Appointment Hour Booking < 1.5.95 - Unauthenticated Booking Capacity Bypass via Multi-Appointment Submission
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Appointment Hour Booking | 0 ~ 1.5.95 | - |
|
II. Public POCs for CVE-2026-86475
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-86475 (1)
-
🔗 Appointment Hour Booking < 1.5.95 – Unauthenticated Booking Capacity Bypass via Multi-Appointment Submission | CVE 2026-86475 | Plugin Vulnerabilities exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-16 · 46 CVEs total
| CVE-2026-13407 | 6.1 MEDIUM | Royal Elementor Addons < 1.7.1067 - Unauthenticated Stored HTML Injection in Form Notifica |
| CVE-2026-84906 | 5.3 MEDIUM | Eventin < 4.1.24 - Unauthenticated Payment Bypass via Stripe and PayPal Cross-Order Transa |
| CVE-2026-19857 | 4.8 MEDIUM | Formidable Forms < 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Cu |
| CVE-2026-76552 | WP Import Export Lite < 3.9.33 - Authenticated Arbitrary File Upload via Remote Image Impo | |
| CVE-2026-85349 | FluentBoards < 2.0.15 - Subscriber+ Private Board Membership Disclosure via IDOR | |
| CVE-2026-76555 | WP Import Export Lite < 3.9.33 - Authenticated Sensitive File Disclosure via Existing File | |
| CVE-2026-76557 | WP Import Export Lite < 3.9.33 - Authenticated SQLi via Import Options | |
| CVE-2026-76551 | WP Import Export Lite < 3.9.33 - Authenticated RCE via Export Field PHP Function | |
| CVE-2026-74926 | MultiVendorX 5.0.0 - 5.0.15 - Subscriber+ Arbitrary Store Data and Ownership Overwrite via | |
| CVE-2026-76553 | WP Import Export Lite < 3.9.33 - Authenticated Arbitrary Directory Deletion via Template P | |
| CVE-2026-78472 | Ni WooCommerce Sales Report < 4.2.0 - Unauthenticated SQLi via 'sort' Parameter | |
| CVE-2026-82124 | Schema & Structured Data for WP & AMP < 1.66 - Unauthenticated Password-Protected Post Con | |
| CVE-2026-77702 | Eventin < 4.1.24 - Unauthenticated Ticket Price Rewrite via order_token | |
| CVE-2026-84829 | Optimole < 4.2.12 - Unauthenticated Stored XSS via Srcset Descriptor Parameter | |
| CVE-2026-84905 | Eventin < 4.1.24 - Contributor+ User Creation via Speaker Creation | |
| CVE-2026-84088 | Xpro Elementor Addons < 1.7.9 - Contributor+ Stored XSS via Interactive Circle Widget | |
| CVE-2026-82126 | Schema & Structured Data for WP & AMP 1.63 - 1.65 - Contributor+ Non-Public Post Content D | |
| CVE-2026-82125 | Schema & Structured Data for WP & AMP 1.46 - 1.65 - Unauthenticated Non-Public Comment Con | |
| CVE-2026-84907 | Eventin < 4.1.24 - Unauthenticated Order and Attendee Status Reset via Payment REST Endpoi | |
| CVE-2026-76550 | WP Import Export Lite < 3.9.34 - Authenticated RCE via Export Template Path Traversal |
Showing top 20 of 46 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2026-86475
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