What is the CVSS score of CVE-2026-81648?

CVE-2026-81648 has a CVSS 3.1 base score of 10.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of CryptoPayment Gateway are affected by CVE-2026-81648?

The CryptoPayment Gateway WordPress plugin (versions 1.2.1-1.2.2) contains a critical authorization bypass that allows unauthenticated remote attackers to delete arbitrary server files, alter payment…

Is there a public PoC exploit available for CVE-2026-81648?

Yes, a public proof-of-concept exploit is available for CVE-2026-81648. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2026-81648?

Within 24 hours, immediately disable and deactivate the CryptoPayment Gateway plugin across all WordPress installations; audit your WordPress deployment to identify systems running affected versions 1.2.1 or 1.2.2 and take the plugin offline to block exploitation vectors. Within 7 days, remove the plugin entirely (no patch is currently available); audit your payment gateway configuration files and server logs for unauthorized modifications or credential access; and reset all wallet credentials and payment processor API keys associated with this plugin. Within 30 days, conduct a comprehensive forensic audit of affected WordPress servers to detect unauthorized file deletions or system modifications; implement plugin version monitoring and automated alerts; rotate all financial services credentials; and evaluate alternative payment processors from vendors with demonstrated security practices.

CryptoPayment Gateway CVE-2026-81648

EUVD-2026-77085 CRITICAL

Missing Authorization (CWE-862)

2026-09-13 WPScan

GHSA-9r3q-6qw8-8pm7

WordPress Authentication Bypass Unknown Cryptopayment Gateway

10.0

CVSS 3.1 · Vendor: WPScan

Severity by source

Vendor (WPScan) PRIMARY

10.0 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

vuln.today AI

10.0 CRITICAL

Unauthenticated network AJAX call (PR:N/UI:N/AC:L); arbitrary file deletion reaches beyond the plugin's scope (S:C) with full credential, config and file impact (C:H/I:H/A:H).

3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

POC Analysis Generated

Sep 13, 2026 - 23:21 vuln.today

Analysis Generated

Sep 13, 2026 - 22:53 vuln.today

CVE Published

Sep 13, 2026 - 20:06 cve.org

CRITICAL 10.0

DescriptionCVE.org

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.

Articles & Coverage 1

News Critical Missing Authorization in WordPress CryptoPayment Gateway Plugin - CVE-2026-81648 Sep 14, 2026

AnalysisAI

Missing authorization on an AJAX endpoint in the CryptoPayment Gateway WordPress plugin (versions 1.2.1 through 1.2.2) lets remote unauthenticated attackers invoke administrative operations. An attacker can delete arbitrary files on the server, overwrite the payment gateway configuration, and read stored wallet credentials in cleartext. …

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Vulnerability AssessmentAI

Exploitation	Requires that the CryptoPayment Gateway plugin (version 1.2.1 through 1.2.2) be installed and active on a reachable WordPress site; the vulnerable AJAX action must be registered for unauthenticated (nopriv) access, which the advisory confirms by describing unauthenticated invocation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	All available signals point to genuine high priority: the CVSS 3.1 vector is fully unauthenticated network exploitation with low complexity and no user interaction (AV:N/AC:L/PR:N/UI:N), scope change (S:C), and high confidentiality, integrity and availability impact, yielding a maximal 10.0. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation	No vendor-released patched version is identified in the available data (1.2.2 is the latest listed and is affected), so the safest immediate action is to deactivate and remove the CryptoPayment Gateway plugin until a fixed release is published; monitor the WPScan advisory (https://wpscan.com/vulnerability/9b1490a0-1381-4d22-8086-f75aade4e898/) for a patched version and upgrade to it as soon as available. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, immediately disable and deactivate the CryptoPayment Gateway plugin across all WordPress installations; audit your WordPress deployment to identify systems running affected versions 1.2.1 or 1.2.2 and take the plugin offline to block exploitation vectors. …

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