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Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-103301

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-103301

Payment Gateway for Telcell

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Unknown",
    "product": "Payment Gateway for Telcell",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.0.5",
        "versionType": "semver"
      }
    ],
    "collectionURL": "https://wordpress.org/plugins",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-103301

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#45752 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement