Casso Flow Plugin up to 4.1.x on WordPress Payment Notification Verification access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k1.64

Summaryinfo

A vulnerability, which was classified as problematic, was found in Casso Flow Plugin up to 4.1.x. Affected by this vulnerability is an unknown functionality of the component Payment Notification Verification. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2026-103382. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Casso Flow Plugin up to 4.1.x and classified as problematic. This vulnerability affects some unknown functionality of the component Payment Notification Verification. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity. CVE summarizes:

The Casso Flow WordPress plugin before 4.2.0 does not properly authenticate incoming bank-transfer payment notifications, as the token used to verify them is empty on a default installation, allowing unauthenticated attackers to forge a notification and mark any pending WooCommerce order as paid, regardless of its payment method.

The advisory is available at wpscan.com. This vulnerability was named CVE-2026-103382 since 09/30/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 4.2.0 eliminates this vulnerability.

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Casso Flow Plugin 4.2.0

Timelineinfo

09/30/2026 CVE reserved
10/28/2026 +28 days Advisory disclosed
10/28/2026 +0 days VulDB entry created
10/28/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Status: Confirmed

CVE: CVE-2026-103382 (🔒)
GCVE (CVE): GCVE-0-2026-103382
GCVE (VulDB): GCVE-100-427702

Entryinfo

Created: 10/28/2026 07:18
Changes: 10/28/2026 07:18 (55)
Complete: 🔍
Cache ID: 216::103

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