Appointment Booking Plugin <= 5.7.3 — Authenticated (Subscriber+) Sensitive Information Exposure in 'first_name' Parameter Template Re-expansion
CVE-2026-103380Published · Updated Action summary
Affected: ≤5.7.3Update to 5.7.4 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Weakness
- CWE-200 Information Exposure
- Required access
- Unknown
- Exploit prediction (EPSS)
- 0.3% chance in 30 days24th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress latepoint
- Affected≤ 5.7.3
- Patched in5.7.4
Update to 5.7.4 or newer.
You are affected if you run ≤ 5.7.3. Version 5.7.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 5.7.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to walid213.
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.7.3 via the 'params[customer][first_name]' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract privileged booking data including the administrator-only admin_notes field, assigned agent internal contact details, transaction tokens, and payment request URLs delivered via rendered notification emails. A LatePoint customer can exploit this by storing a template placeholder such as {{customer_admin_notes}} in their own first_name field via the customer_cabinet__update route, then triggering the password-reset email flow to receive the expanded value in the resulting notification.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
All 59| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.1 | Unauthenticated Authentication Bypass via Account Takeover via 'IS NOT NULL' Sentinel in 'password_reset_token' Parameter ≤5.7.6Update to 5.7.7 | CVE-2026-118066 | |
| Medium5.4 | Unauthenticated Stored Cross-Site Scripting via Customer Email Field ≤5.7.6Update to 5.7.7 | CVE-2026-119152 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting ≤5.7.5Update to 5.7.6 | CVE-2026-105258 | |
| Medium5.3 | Unauthenticated Payment Bypass ≤5.7.4Update to 5.7.5 | CVE-2026-105256 | |
| Medium4.3 | Authenticated (Agent+) Insecure Direct Object Reference ≤5.7.4Update to 5.7.5 | CVE-2026-105257 |
- Critical9.1Unauthenticated Authentication Bypass via Account Takeover via 'IS NOT NULL' Sentinel in 'password_reset_token' Parameter
≤5.7.6Update to 5.7.7
- Medium5.4Unauthenticated Stored Cross-Site Scripting via Customer Email Field
≤5.7.6Update to 5.7.7
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
≤5.7.5Update to 5.7.6
- Medium5.3Unauthenticated Payment Bypass
≤5.7.4Update to 5.7.5
- Medium4.3Authenticated (Agent+) Insecure Direct Object Reference
≤5.7.4Update to 5.7.5
Same weakness (Information Exposure)
All Information Exposure| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
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Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.