BookIt <= 2.3.7 - Authentication Bypass
Priority HIGH 82CWE-288Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-288.
Summary
The BookIt plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.3.7. This is due to insufficient verification on the user being supplied during booking an appointment through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the email.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01914 79th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| stellarwp | Bookit — Booking & Appointment Calendar | up to 2.3.7 | — | No fix listed | CNA |
- Bookit — Booking & Appointment Calendar Vendorstellarwp Affected up to 2.3.7 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stylemixthemes:bookit:*:*:*:*:*:wordpress:*:* | up to 2.3.7 | Vulnerable | StylemixThemes |
- cpe:2.3:a:stylemixthemes:bookit:*:*:*:*:*:wordpress:*:* Versions up to 2.3.7 Vulnerable ·StylemixThemes
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-2834
- 2026-10-03 Alias added: GHSA-x48c-rrg8-735f
References
Exploit 2
Patch 4
- https://plugins.trac.wordpress.org/browser/bookit/tags/2.3.6/includes/classes/CustomerController.php#L27
- https://plugins.trac.wordpress.org/browser/bookit/tags/2.3.6/includes/classes/database/Customers.php#L63
- https://plugins.trac.wordpress.org/changeset/2919529/bookit
- https://plugins.trac.wordpress.org/changeset/2925153/bookit
More stellarwp vulnerabilities
- TI-2024-05498 Deserialization of untrusted data in stellarwp GiveWP – Donation Plugin and Fundraising… CVSS 3.1CRITICAL 10.0
- TI-2024-07671 The Events Calendar <= 6.6.4 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2024-03888 The Events Calendar < 6.4.0.1 - Reflected XSS CVSS 3.1CRITICAL 9.1
- TI-2024-07745 GiveWP – Donation Plugin and Fundraising Platform <= 3.16.1 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
- TI-2024-04952 The Events Calendar < 6.8.2.1 - Unauthenticated Password Protected Event Disclosure CVSS 3.1MEDIUM 5.3
- TI-2024-01123 LearnDash LMS <= 4.10.2 - Sensitive Information Exposure via API CVSS 3.1MEDIUM 5.3
Sources
- CVE-2023-2834 · CVE Program
- CVE-2023-2834 · NVD
- FIRST EPSS
- GHSA-x48c-rrg8-735f · 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