Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) <= 4.1.22 — Authenticated (Subscriber+) Missing Authorization to Order Completion / Free Ticket Redemption
CVE-2026-82223Published · Updated Action summary
Affected: ≤4.1.22Update to 4.1.23 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
- Weakness
- CWE-862 Missing Authorization
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce wp-event-solution
- Affected≤ 4.1.22
- Patched in4.1.23
Update to 4.1.23 or newer.
You are affected if you run ≤ 4.1.22. Version 4.1.23 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce.
- 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 4.1.23, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to 20kilograma, Wordfence PRISM.
The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.22. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to bypass payment for paid events, fraudulently mark orders as completed, deplete ticket inventory, and trigger confirmation emails for tickets never purchased. This is exploitable by unauthenticated attackers because the wp_rest nonce is publicly emitted on every frontend page, and the order creation endpoint mints and returns an order_access_token to any caller possessing that nonce — giving unauthenticated users all credentials required to reach the privileged update_booking_status branch.
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 Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce
All 59| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via 'id' Parameter ≤4.1.29Update to 4.1.30 | CVE-2026-109994 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤4.1.26Update to 4.1.27 | CVE-2026-112844 | |
| Medium5.3 | Missing Authorization ≤4.1.26Update to 4.1.27 | CVE-2026-110380 | |
| Medium5.3 | Missing Authorization ≤4.1.25Update to 4.1.26 | CVE-2026-109898 | |
| Medium5.3 | Missing Authorization ≤4.1.25Update to 4.1.26 | CVE-2026-97300 |
- Medium6.5Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via 'id' Parameter
≤4.1.29Update to 4.1.30
- High7.2Unauthenticated Stored Cross-Site Scripting
≤4.1.26Update to 4.1.27
- Medium5.3Missing Authorization
≤4.1.26Update to 4.1.27
- Medium5.3Missing Authorization
≤4.1.25Update to 4.1.26
- Medium5.3Missing Authorization
≤4.1.25Update to 4.1.26
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
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.