What’s Vulnerable › Vulnerabilities
CVE-2026-88998: Tickera < 3.6.0.4 - Unauthenticated Order Payment Bypass via 2Checkout IPN
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-14 · updated 2026-10-14
- Weakness: CWE-345
Description
The Tickera WordPress plugin before 3.6.0.4 does not correctly verify the integrity of incoming payment notifications, and the validated signature does not cover the order or the amount, allowing unauthenticated attackers to forge a payment confirmation and mark arbitrary orders as paid without paying.
Affected products
- Tickera: before 3.6.0.4 — fixed in 3.6.0.4
How to fix
Upgrade to a fixed version: Tickera 3.6.0.4. Check the vendor advisory for mitigations.
References
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