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CVE-2026-88995— Bookit < 2.6.0.1 - Unauthenticated Appointment PII Disclosure via Availability Check

Quick assessment

Affected
Unknown Bookit — Booking & Appointment Calendar
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.

在 2.6.0.1 之前的 Bookit — Booking & Appointment Calendar（预订与预约日历）WordPress 插件未能对可用性检查请求返回的数据进行适当限制，导致未认证用户可以获取其他客户的预约详情，包括自由文本形式的预订备注和联系信息。

AI Predicted 5.3 Difficulty: Easy EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Bookit — Booking & Appointment Calendar < 2.6.0.1 affected
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I. Basic Information for CVE-2026-88995

Vulnerability Information
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Vulnerability Title
Bookit < 2.6.0.1 - Unauthenticated Appointment PII Disclosure via Availability Check
Source: CVE Program / CVE List V5
Vulnerability Description
The Bookit — Booking & Appointment Calendar WordPress plugin before 2.6.0.1 does not properly restrict the data returned by an availability-check request, allowing unauthenticated users to retrieve other customers' appointment details, including free-text booking comments and contact information.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 Bookit — Booking & Appointment Calendar 0 ~ 2.6.0.1 -

II. Public POCs for CVE-2026-88995

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III. Intelligence Information for CVE-2026-88995

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News Coverage for CVE-2026-88995 (1)

Same Patch Batch · Unknown · 2026-09-13 · 15 CVEs total

CVE-2026-81648 10.0 CRITICAL CryptoPayment Gateway 1.2.1 - 1.2.2 - Unauthenticated Arbitrary File Deletion and Settings
CVE-2026-74933 8.8 HIGH GenieWords 1.5.27 - 1.5.34 - Unauthenticated Stored XSS and Configuration Overwrite
CVE-2026-85129 8.8 HIGH Hoo Companion 1.0.2 - Unauthenticated Stored XSS via Theme Settings Import
CVE-2026-88793 8.8 HIGH YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server
CVE-2026-88802 7.5 HIGH MDJM Event Management and Mobile Events Manager - Unauthenticated Arbitrary Post Deletion
CVE-2026-89050 4.3 MEDIUM Quads Ads Manager for Google AdSense < 3.0.5 - Subscriber+ Ad-Selling Payment Bypass via U
CVE-2026-77773 Social Contact Form (FormyChat) < 2.15.8 - Unauthenticated Gravity Forms Entry Disclosure
CVE-2026-86406 User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership P
CVE-2026-80071 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to Administrator
CVE-2026-80072 User Registration & Membership < 5.2.8 - Unauthenticated Open Redirect via Login Redirect
CVE-2026-86407 User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membersh
CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard su
CVE-2026-88912 rtMedia for WordPress, BuddyPress and bbPress < 4.7.12 - Subscriber+ Arbitrary Activity Pr
CVE-2026-89080 Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demot

IV. Related Vulnerabilities

Same product: Bookit — Booking & Appointment Calendar
Same vendor: Unknown

V. Comments for CVE-2026-88995

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