What is the CVSS score of CVE-2025-3889?

CVE-2025-3889 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.3%.

Which versions of PHP are affected by CVE-2025-3889?

Organizations using for WordPress is vulnerable to Insecure Direct Object Reference in all should be aware of moderate risk from CVE-2025-3889, a IDOR vulnerability rated CVSS 5.3.. A patch is available.

How to fix or mitigate CVE-2025-3889?

Within 30 days: Identify affected systems running for WordPress is vulnerable to Insecure Direct Object Refere and apply vendor patches as part of regular patch cycle. Vendor patch is available.

PHP CVE-2025-3889

MEDIUM

Authorization Bypass Through User-Controlled Key (CWE-639)

2025-05-01 security@wordfence.com

PHP WordPress Authentication Bypass Wordpress Simple Paypal Shopping Cart Wordpress Plugin Tipsandtricks Hq

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:39 vuln.today

Patch released

Mar 28, 2026 - 18:39 nvd

Patch available

CVE Published

May 01, 2025 - 12:15 nvd

MEDIUM 5.3

DescriptionCVE.org

The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.3 via the 'process_payment_data' due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to change the quantity of a product to a negative number, which subtracts the product cost from the total order cost. The attack will only work with Manual Checkout mode, as PayPal and Stripe will not process payments for a negative quantity.

AnalysisAI

The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.3 via the 'process_payment_data' due to missing. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-639. The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.3 via the 'process_payment_data' due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to change the quantity of a product to a negative number, which subtracts the product cost from the total order cost. The attack will only work with Manual Checkout mode, as PayPal and Stripe will not process payments for a negative quantity. Affected products include: Tipsandtricks-Hq Wordpress Simple Paypal Shopping Cart.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.