What’s Vulnerable › Vulnerabilities
CVE-2026-77694: Eventin < 4.1.19 - Unauthenticated Order Completion Without Payment via order_token
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-26 · updated 2026-08-26
- Weakness: CWE-862
Description
The Eventin WordPress plugin before 4.1.19 does not properly restrict which changes a guest checkout token is allowed to authorise on an order, allowing unauthenticated users to mark their own unpaid order as completed and be issued a valid paid ticket with no payment taken.
Affected products
- Eventin: before 4.1.19 — fixed in 4.1.19
How to fix
Upgrade to a fixed version: Eventin 4.1.19. Check the vendor advisory for mitigations.
References
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