Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-77765

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
23/09/2026
Last modified:
23/09/2026

Description

The Better Payment WordPress plugin before 2.3.4 does not validate the submitted payment amount server-side against the merchant's configured fixed price before building the gateway charge, allowing unauthenticated users to pay an arbitrary reduced amount for a fixed-price item.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools