BookingPress Pro < 5.7.3 - Unauthenticated Customer PII Disclosure and Booking Tampering via Permission Callback Bug
Priority HIGH 75CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The bookingpress-appointment-booking-pro WordPress plugin before 5.7.3 does not correctly invoke its REST permission callback, leaving every route in one of its API namespaces reachable without authentication and allowing unauthenticated attackers to read customer booking data and modify other users' bookings.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00426 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed bookingpress-appointment-booking-pro (Unknown): 5.7.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | bookingpress-appointment-booking-pro | before 5.7.3 | 5.7.3 | Patch available | CNA |
- bookingpress-appointment-booking-pro VendorUnknown Affected before 5.7.3 Fixed in 5.7.3 Patch available CNA
Remediation
- Fix · CNA bookingpress-appointment-booking-pro (Unknown) Fixed in 5.7.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9830
- 2026-10-03 Alias added: GHSA-5h5h-jh94-gqhv
References
Sources
- CVE-2026-9830 · CVE Program
- CVE-2026-9830 · NVD
- FIRST EPSS
- GHSA-5h5h-jh94-gqhv · GitHub Advisory Database · CC BY 4.0
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