What is CVE-2026-103301?

CVE-2026-103301 is a medium-severity vulnerability in Payment Gateway For Telcell, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-21.

How severe is CVE-2026-103301?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Payment Gateway For Telcell

CVE-2026-103301

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.

Published 2026-10-21 · last modified 2026-10-21.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Payment Gateway For Telcell

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

wpscan.com/vulnerability/c3b5f5fb-cddf-47f3-b39f-8bcd2c738c83/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-103301?: CVE-2026-103301 is a medium-severity vulnerability in Payment Gateway For Telcell, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-21.
How severe is CVE-2026-103301?: Medium severity. CVSS v3 base score is 5.3 out of 10.