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CVE-2026-87965— Easy Appointments < 4.0.2.2 - Unauthenticated Appointment Cancellation/Confirmation via Forgeable Email-Link Token

Quick assessment

Affected
Unknown Easy Appointments
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.

在版本 4.0.2.2 之前的 Easy Appointments WordPress 插件在授权其邮件链接中的预约取消和确认操作时，未使用不可猜测的令牌。该令牌是由硬编码在源代码中的盐值与预约创建时间戳共同派生生成的。因此，如果未认证的攻击者知道或能够猜测出该时间戳，就可以取消或确认任意预约。

AI Predicted 9.8 Difficulty: Easy EPSS 0.27% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Easy Appointments < 4.0.2.2 affected
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I. Basic Information for CVE-2026-87965

Vulnerability Information
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Vulnerability Title
Easy Appointments < 4.0.2.2 - Unauthenticated Appointment Cancellation/Confirmation via Forgeable Email-Link Token
Source: CVE Program / CVE List V5
Vulnerability Description
The Easy Appointments WordPress plugin before 4.0.2.2 does not use an unguessable token to authorize its mail-link appointment cancellation and confirmation action, deriving the token from a hardcoded source-embedded salt and the appointment's creation timestamp, so unauthenticated attackers who know or guess that timestamp can cancel or confirm arbitrary appointments.
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 Easy Appointments 0 ~ 4.0.2.2 -

II. Public POCs for CVE-2026-87965

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III. Intelligence Information for CVE-2026-87965

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Other References for CVE-2026-87965 (1)

Same Patch Batch · Unknown · 2026-09-18 · 32 CVEs total

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CVE-2026-79713 6.5 MEDIUM Breeze Cache 1.2.5 - 2.5.14 - Unauthenticated Cache Poisoning via Unkeyed Tracking Paramet
CVE-2026-90977 5.3 MEDIUM Clean Login < 1.19 - Unauthenticated CAPTCHA Bypass via Empty Session Comparison
CVE-2026-90976 5.3 MEDIUM Clean Login < 1.19 - Unauthenticated Account Creation with Registration Disabled
CVE-2026-86800 5.3 MEDIUM WP Ghost (Hide My WP Ghost) < 7.0.11 - Unauthenticated URL Hiding Bypass via Loopback Comp
CVE-2026-86796 5.3 MEDIUM WP Ghost (Hide My WP Ghost) 7.0.10 - Unauthenticated Firewall, Threat Detection and URL Hi
CVE-2026-87770 Price Drop Alert for WooCommerce <= 1.1 - Unauthenticated SQL Injection via product
CVE-2026-90978 Filter Gallery < 1.1.5 - Subscriber+ Arbitrary Post Overwrite and Plugin Option Deletion v
CVE-2026-90984 Generate PDF using Contact Form 7 < 4.2.2 - Unauthenticated Server-Side Request Forgery vi
CVE-2026-89008 Bookit < 2.6.0.5 - Bookit Staff+ Appointment PII Disclosure
CVE-2026-89007 Bookit < 2.6.0.5 - Bookit Staff+ Arbitrary Appointment Deletion via Missing Authorization
CVE-2026-87966 Easy Appointments 4.0 - 4.0.2.1 - Unauthenticated Arbitrary Appointment Modification and D
CVE-2026-88825 iGMS Direct Booking < 2.0 - Unauthenticated Stored XSS via Widget Settings
CVE-2026-88798 Really Simple Security (Free) < 9.8.3 - Unauthenticated Unbounded Option Growth via Spoofe
CVE-2026-88993 All Bootstrap Blocks <= 1.3.31 - Contributor+ Stored XSS via areoi/button type Attribute
CVE-2026-88844 MasterStudy LMS 3.6.2 - < 3.7.50 - Instructor+ Student PII Disclosure via IDOR
CVE-2026-81810 All-in-One WP Migration and Backup < 7.111 - Authenticated Privilege Escalation to Admin v
CVE-2026-87775 Tz Weekly Radio Schedule <= 1.8.1 - Unauthenticated SQLi via tzwrs_update_cell
CVE-2026-87771 Product Question and Answer <= 1.1.0 - Unauthenticated SQL Injection via p_id and read
CVE-2026-87774 Tz Weekly Radio Schedule <= 1.8.1 - Unauthenticated SQL Injection via week

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Easy Appointments
Same vendor: Unknown