Is there a public PoC exploit available for CVE-2026-103299?

Yes, a public proof-of-concept exploit is available for CVE-2026-103299. Prioritise patching immediately.

Payment Gateway CVE-2026-103299

EUVD-2026-109622

2026-10-26 WPScan

WordPress Information Disclosure Payment Gateway

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This Week Schedule remediation this week. Why: No CVSS yet + EPSS > 10% or public POC.

No patch listed yet

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AnalysisCVE.org

The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured.

Affected VersionsENISA

Payment Gateway 0 ≤2.2.0

Affected Packages

euvd payment_gateway no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Threat Intelligence Overview

Exploit

POC

Public exploit code exists

Social Media

Sightings

Data Quality

2 sources

Confidence: Low

EUVD

CVE.org CIRCL

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC Yes

EPSS N/A

Patch available No

Active threat No

Deciding rule

No CVSS yet + EPSS > 10% or public POC

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: 0

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.