What’s Vulnerable › Vulnerabilities
CVE-2026-103301: Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret
- 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: 2026-10-21 · updated 2026-10-21
- Weakness: CWE-345
Description
The Payment Gateway for Telcell WordPress plugin before 2.0.5 does not verify the authenticity of incoming payment notifications, because the secret used to sign them is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary WooCommerce orders as paid. The same handler also marks an attacker-chosen order as failed when given an invalid signature.
Affected products
- Payment Gateway for Telcell: before 2.0.5 — fixed in 2.0.5
How to fix
Upgrade to a fixed version: Payment Gateway for Telcell 2.0.5. Check the vendor advisory for mitigations.
References
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