CVE-2026-103312

Payment Integration Wompi <= 4.0.1 - Unauthenticated Payment Confirmation Forgery via IPN Callback

Published Oct 27, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
The Payment Integration Wompi WordPress plugin through 4.0.1 does not verify the authenticity of incoming payment notifications on a stock install, because the callback's checksum is keyed on a merchant secret that is empty until it is manually configured, allowing an unauthenticated attacker to forge a notification and mark an arbitrary order as paid.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-639
CWE-665
Type Values Removed Values Added
Weaknesses CWE-287
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-639
CWE-665
Type Values Removed Values Added
Description The Payment Integration Wompi WordPress plugin through 4.0.1 does not verify the authenticity of incoming payment notifications on a stock install, because the callback's checksum is keyed on a merchant secret that is empty until it is manually configured, allowing an unauthenticated attacker to forge a notification and mark an arbitrary order as paid.
Title Payment Integration Wompi <= 4.0.1 - Unauthenticated Payment Confirmation Forgery via IPN Callback
References

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Oct 28, 2026, 5:58 PM
Reserved
Sep 30, 2026, 11:42 AM
Status
Deferred
Published
Oct 27, 2026, 6:17 AM
Modified
Oct 28, 2026, 6:17 PM