EventPrime – Events Calendar, Bookings and Tickets <= 3.4.2 — Unauthenticated Booking Payment Bypass
CVE-2024-1321Published · Updated Action summary
Affected: ≤3.4.2Update to 3.4.3 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?
EventPrime – Events Calendar, Bookings, Tickets & AI eventprime-event-calendar-management
- Affected≤ 3.4.2
- Patched in3.4.3
Update to 3.4.3 or newer.
You are affected if you run ≤ 3.4.2. Version 3.4.3 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under EventPrime – Events Calendar, Bookings, Tickets & AI.
- 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 3.4.3, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch EventPrime – Events Calendar, Bookings, Tickets & AI to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Lucio Sá.
The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to payment bypass in all versions up to, and including, 3.4.2. This is due to the plugin allowing unauthenticated users to update the status of order payments. This makes it possible for unauthenticated attackers to book events for free.
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 EventPrime – Events Calendar, Bookings, Tickets & AI
All 47| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Missing Authorization <4.3.6.1Update to 4.3.6.1 | CVE-2026-118523 | |
| Medium4.3 | Missing Authorization ≤4.3.6.0Update to 4.3.6.1 | CVE-2026-42691 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'new_event_type_background_color' Parameter ≤4.3.4.2Update to 4.3.4.3 | CVE-2026-13441 | |
| High7.5 | Authenticated (Subscriber+) PHP Object Injection ≤4.3.4.1Update to 4.3.4.2 | CVE-2026-56053 | |
| High8.1 | Unauthenticated PHP Object Injection ≤4.3.2.1Update to 4.3.2.2 | CVE-2026-42687 |
- Medium5.3Missing Authorization
<4.3.6.1Update to 4.3.6.1
- Medium4.3Missing Authorization
≤4.3.6.0Update to 4.3.6.1
- High7.2Unauthenticated Stored Cross-Site Scripting via 'new_event_type_background_color' Parameter
≤4.3.4.2Update to 4.3.4.3
- High7.5Authenticated (Subscriber+) PHP Object Injection
≤4.3.4.1Update to 4.3.4.2
- High8.1Unauthenticated PHP Object Injection
≤4.3.2.1Update to 4.3.2.2
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.