Bookly <= 22.3.1 — Authenticated(Administrator+) SQL Injection
CVE-2023-4691Published · Updated Action summary
Affected: ≤22.3.1Update to 22.4 or newer
All remediation steps- Severity
- Medium6.6
- CVSS
- 6.6CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:HAttack complexity- High
PR:HPrivileges required- High
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-89 SQL Injection
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Online Scheduling and Appointment Booking System – Bookly bookly-responsive-appointment-booking-tool
- Affected≤ 22.3.1
- Patched in22.4
Update to 22.4 or newer.
You are affected if you run ≤ 22.3.1. Version 22.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Online Scheduling and Appointment Booking System – Bookly.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 22.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Online Scheduling and Appointment Booking System – Bookly to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Pablo Sanchez.
The Bookly plugin for WordPress is vulnerable to SQL Injection via an unknown parameter in versions up to, and including, 22.3.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with administrator privileges to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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 Online Scheduling and Appointment Booking System – Bookly
All 32| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Authenticated (Custom+) PHP Object Injection via 'value' Parameter ≤28.2Update to 28.3 | CVE-2026-12626 | |
| Medium6.8 | Insecure Direct Object Reference to Authenticated (Subscriber+) Privilege Escalation via 'id' and 'wp_user_id' Parameters via Query String / JSON Body ≤28.4Update to 28.5 | CVE-2026-104898 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'phone' Parameter to bookly_render_details ≤28.4Update to 28.5 | CVE-2026-103365 | |
| Medium4.3 | Authenticated (Staff+) Insecure Direct Object Reference ≤28.2Update to 28.3 | CVE-2026-86839 | |
| Medium5.3 | Unauthenticated Payment Bypass ≤28.2Update to 28.3 | CVE-2026-86838 |
- High7.2Authenticated (Custom+) PHP Object Injection via 'value' Parameter
≤28.2Update to 28.3
- Medium6.8Insecure Direct Object Reference to Authenticated (Subscriber+) Privilege Escalation via 'id' and 'wp_user_id' Parameters via Query String / JSON Body
≤28.4Update to 28.5
- Medium5.3Unauthenticated Sensitive Information Exposure in 'phone' Parameter to bookly_render_details
≤28.4Update to 28.5
- Medium4.3Authenticated (Staff+) Insecure Direct Object Reference
≤28.2Update to 28.3
- Medium5.3Unauthenticated Payment Bypass
≤28.2Update to 28.3
Same weakness (SQL Injection)
All SQL Injection| 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
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.6
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.