Five Star Restaurant Reservations <= 2.7.16 — Unauthenticated Payment Bypass via PHP Type Juggling in 'payment_id' Parameter
CVE-2026-6498Published · Updated Action summary
Affected: ≤2.7.16Update to 2.7.17 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?
Five Star Restaurant Reservations – WordPress Booking Plugin restaurant-reservations
- Affected≤ 2.7.16
- Patched in2.7.17
Update to 2.7.17 or newer.
You are affected if you run ≤ 2.7.16. Version 2.7.17 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Five Star Restaurant Reservations – WordPress Booking Plugin.
- 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 2.7.17, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Five Star Restaurant Reservations – WordPress Booking Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to davidfdzmorilla.
The Five Star Restaurant Reservations plugin for WordPress is vulnerable to a payment bypass via PHP type juggling in versions up to, and including, 2.7.16 This is due to the valid_payment() function using a PHP loose comparison (==) between the attacker-controlled payment_id POST parameter and the booking's stripe_payment_intent_id property. When an unauthenticated attacker submits a request to the nopriv AJAX handler rtb_stripe_pmt_succeed before the Stripe payment intent has been created for a booking (i.e., before the JavaScript-triggered create_stripe_pmtIntnt() call has stored an intent ID in post meta), the stripe_payment_intent_id property on the booking object remains null. The comparison sanitize_text_field('') == null evaluates to TRUE in PHP loose comparison, causing the payment verification check to pass with zero actual payment. This makes it possible for unauthenticated attackers to mark any existing payment_pending booking as paid without completing a Stripe payment by submitting an empty payment_id parameter.
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 Five Star Restaurant Reservations – WordPress Booking Plugin
All 15| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Information Exposure ≤2.7.24Update to 2.8.0 | CVE-2026-103334 | |
| Medium4.3 | Missing Authorization <2.7.23Update to 2.7.23 | CVE-2026-15151 | |
| Medium5.3 | Unauthenticated Insecure Direct Object Reference to Payment Bypass ≤2.7.22Update to 2.7.23 | CVE-2026-15147 | |
| Medium5.3 | Missing Authorization ≤2.7.19Update to 2.7.20 | CVE-2026-54830 | |
| Medium5.3 | Missing Authorization ≤2.7.14Update to 2.7.15 | CVE-2026-42670 |
- Medium5.3Unauthenticated Information Exposure
≤2.7.24Update to 2.8.0
- Medium4.3Missing Authorization
<2.7.23Update to 2.7.23
- Medium5.3Unauthenticated Insecure Direct Object Reference to Payment Bypass
≤2.7.22Update to 2.7.23
- Medium5.3Missing Authorization
≤2.7.19Update to 2.7.20
- Medium5.3Missing Authorization
≤2.7.14Update to 2.7.15
Timeline
CVE published
Severity medium, CVSS 5.3
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.