Rox Appointment Booking – Appointment Booking Scheduling Solution < 1.2.0 — Payment Bypass to Unauthenticated Arbitrary Booking Price and Payment Method Bypass
CVE-2026-87892Published · Updated Action summary
Affected: <1.2.0Update to 1.2.0 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Rox Appointment Booking – Event, Calendar & Appointment Scheduling rox-appointment-booking
- Affected< 1.2.0
- Patched in1.2.0
Update to 1.2.0 or newer.
You are affected if you run < 1.2.0. Version 1.2.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Rox Appointment Booking – Event, Calendar & Appointment Scheduling.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 1.2.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Rox Appointment Booking – Event, Calendar & Appointment Scheduling to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Morato Antoine.
The Rox Appointment Booking – Appointment Booking Scheduling Solution plugin for WordPress is vulnerable to Payment Bypass in all versions up to 1.2.0. This is due to missing server-side verification of the order total and payment method, with the client-submitted amount used directly for billing instead of prices calculated from the database. This makes it possible for unauthenticated attackers to create confirmed bookings at an arbitrary price and bypass configured payment-method restrictions by submitting a tampered amount in the booking request.
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 Rox Appointment Booking – Event, Calendar & Appointment Scheduling
All 6| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Unauthenticated Privilege Escalation via Mass Assignment to Mass Assignment via '/public/booking' Endpoint ≤1.3.1Update to 1.3.2 | CVE-2026-104012 | |
| Medium5.3 | Unauthenticated Information Exposure ≤1.2.7Update to 1.2.8 | CVE-2026-87896 | |
| Medium5.3 | Missing Authorization <1.2.0Update to 1.2.0 | CVE-2026-87891 | |
| Medium5.3 | Unauthenticated Information Exposure ≤1.2.7Update to 1.2.8 | CVE-2026-87907 | |
| Medium5.3 | 1.2.2 - Unauthenticated Insecure Direct Object Reference 1.0.9 – 1.2.2Update to 1.2.3 | CVE-2026-87894 |
- High8.8Unauthenticated Privilege Escalation via Mass Assignment to Mass Assignment via '/public/booking' Endpoint
≤1.3.1Update to 1.3.2
- Medium5.3Unauthenticated Information Exposure
≤1.2.7Update to 1.2.8
- Medium5.3Missing Authorization
<1.2.0Update to 1.2.0
- Medium5.3Unauthenticated Information Exposure
≤1.2.7Update to 1.2.8
- Medium5.31.2.2 - Unauthenticated Insecure Direct Object Reference
1.0.9 – 1.2.2Update to 1.2.3
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. 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.