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Vulnerabilities

Vulnerability · CVE-2026-103300

Eurobank WooCommerce Payment Gateway <= 2.1.1 - Unauthenticated Order Payment Forgery via Unverified Callback

Published Oct 26, 2026 · catalog updated Oct 26, 2026 · Unknown Eurobank WooCommerce Payment Gateway

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-103300. EPSS is 0.11%. Act only if a listed version of Unknown Eurobank WooCommerce Payment Gateway is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.11%
Remediation
Version ranges on file
Affected products
stated Eurobank WooCommerce Payment Gateway · vendor Unknown Eurobank WooCommerce Payment Gateway

The Eurobank WooCommerce Payment Gateway WordPress plugin through 2.1.1 does not verify that a payment-confirmation request genuinely originates from the payment provider, and ships with the secret that would authenticate it empty by default, allowing unauthenticated attackers to mark any pending order as paid, and to force any order into a failed status without any secret at all.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated Eurobank WooCommerce Payment Gateway<= 2.1.1
  • vendor Unknown Eurobank WooCommerce Payment Gatewayversion unspecified

How to fix CVE-2026-103300

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-103300. EPSS is 0.11%. Act only if a listed version of Unknown Eurobank WooCommerce Payment Gateway is installed.

Which versions are affected?

Compare what you have installed with Eurobank WooCommerce Payment Gateway <= 2.1.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.11%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 26, 2026 · CIRCL Vulnerability Lookup

    Detected

    The Eurobank WooCommerce Payment Gateway WordPress plugin through 2.1.1 does not verify that a payment-confirmation request genuinely originates from the payment provider, and ships with the secret that would authenticate it empty by default, allowing unauthenticated attackers to mark any pending order as paid, and to force any order into a failed status without any secret at all.

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-103300

    The Eurobank WooCommerce Payment Gateway WordPress plugin through 2.1.1 does not verify that a payment-confirmation request genuinely originates from the payment provider, and ships with the secret that would authenticate it empty by default, allowing unauthenticated attackers to

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-103300

    The Eurobank WooCommerce Payment Gateway WordPress plugin through 2.1.1 does not verify that a payment-confirmation request genuinely originates from the payment provider, and ships with the secret that would authenticate it empty by default, allowing unauthenticated attackers to

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-103300

    30-day exploitation probability 0.11%

    first.org

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgOct 26, 2026
  • CIRCL Vulnerability LookupOct 26, 2026