CVE-2026-103301CWE-345

CVE-2026-103301

Medium · published October 21, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
1.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00114 · 1.4th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-10-21T13:17Z
References (1)
https://wpscan.com/vulnerability/c3b5f5fb-cddf-47f3-b39f-8bcd2c738c83/ · [email protected]
EPSS history
Timeline
  • 22 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 21 OCT 08:38Z
    Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret
    cvelistv5
  • 21 OCT 08:38Z
    Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret
    cvelistv5