CVE-2026-81648

CryptoPayment Gateway 1.2.1 - 1.2.2 - Unauthenticated Arbitrary File Deletion and Settings Update via Unguarded AJAX Router

Published Sep 13, 2026 CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed
Description
The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX endpoints, allowing unauthenticated users to invoke administrative operations, including deleting arbitrary files on the server, overwriting the payment gateway configuration and recovering stored wallet credentials in cleartext.

Analysis

AI-generated

Technical impact

A missing authorization check on one of CryptoPayment Gateway’s AJAX endpoints allows any user to perform privileged actions without authentication, a weakness identified as CWE‑862. The flaw permits unauthenticated site visitors to delete arbitrary files on the server, overwrite the payment gateway configuration, and retrieve stored wallet credentials in cleartext. These capabilities threaten confidentiality by exposing payment data, compromise integrity by enabling destructive changes to site files and configuration, and introduce availability risks through potential site defacement or shutdown.

Affected Systems

WordPress sites that have1.2.2 are affected. The plugin is vendor‑owned but no official CNA vendor identification is available; the vulnerability does not extend to other plugins or core WordPress components.

Risk and Exploitability

The attack vector is unauthenticated remote access via a simple HTTP request to the plugin’s AJAX URL, which requires no credentials. The vulnerability scores a CVSS of 10, indicating maximum severity, while the EPSS score of less than 1% indicates a low probability of exploitation at present. The issue is not listed in the CISA KEV catalog. Once exploited, an attacker can delete or replace site files, alter payment gateway settings, and capture wallet credentials, potentially leading to complete website compromise and financial loss.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade CryptoPayment Gateway to the latest patched release that enforces proper authorization checks on all AJAX endpoints.
  • If an upgrade is not immediately possible, block access to the vulnerable AJAX action by configuring a web application firewall or server‑level URL filtering to prevent unauthenticated requests.
  • Monitor the WordPress file system and database for unexpected deletions, configuration changes, or newly exposed wallet credentials and investigate any anomalies promptly.

Generated by OpenCVE AI on September 15, 2026 at 17:08 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions cryptopayment Gateway
Vendors & Products Wordpress-extensions
Wordpress-extensions cryptopayment Gateway
Type Values Removed Values Added
Metrics ssvc

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

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-284
CWE-732
CWE-862
Metrics ssvc

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

Type Values Removed Values Added
Weaknesses CWE-284
CWE-732
Type Values Removed Values Added
Description The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX endpoints, allowing unauthenticated users to invoke administrative operations, including deleting arbitrary files on the server, overwriting the payment gateway configuration and recovering stored wallet credentials in cleartext.
Title CryptoPayment Gateway 1.2.1 - 1.2.2 - Unauthenticated Arbitrary File Deletion and Settings Update via Unguarded AJAX Router
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 3, 2026, 3:07 PM
Reserved
Aug 27, 2026, 9:27 AM
Status
Deferred
Published
Sep 13, 2026, 9:17 PM
Modified
Nov 3, 2026, 3:17 PM