Booking Calendar <= 9.1 - PHP Object Injection via Shortcode
Priority MEDIUM 43CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
The Booking Calendar plugin for WordPress is vulnerable to PHP Object Injection via the [bookingflextimeline] shortcode in versions up to, and including, 9.1. This could be exploited by subscriber-level users and above to call arbitrary PHP objects on a vulnerable site.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01716 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| wpdevelop | Booking Calendar | 9.1 – 9.1 | — | No fix listed | CNA |
- Booking Calendar Vendorwpdevelop Affected 9.1 – 9.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:booking_calendar_project:booking_calendar:*:*:*:*:*:wordpress:*:* | up to 9.1 | Vulnerable | Booking Calendar Project |
- cpe:2.3:a:booking_calendar_project:booking_calendar:*:*:*:*:*:wordpress:*:* Versions up to 9.1 Vulnerable ·Booking Calendar Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-1463
- 2026-10-03 Alias added: GHSA-w78m-3h49-rcfw
References
More wpdevelop vulnerabilities
- TI-2025-13137 Booking Calendar <= 10.14.8 - Unauthenticated SQL Injection via dates_to_check CVSS 3.1HIGH 7.5
- TI-2026-62468 Booking Calendar <= 11.8.2 - Authenticated (Editor+) Privilege Escalation to 'data_name' Parameter CVSS 3.1HIGH 7.2
- TI-2026-24886 WordPress Booking Calendar plugin <= 10.14.15 - SQL Injection vulnerability CVSS 3.1HIGH 7.6
- TI-2026-42521 WordPress Booking Calendar plugin <= 11.4.2 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2026-51992 WordPress Booking Calendar plugin <= 11.7 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2026-01129 Booking Calendar <= 10.14.13 - Missing Authorization to Unauthenticated Booking Details Exposure CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-1463 · CVE Program
- CVE-2022-1463 · NVD
- FIRST EPSS
- GHSA-w78m-3h49-rcfw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences