ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-3889

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'

Published May 1, 2025 · catalog updated Apr 8, 2026 · Simple Shopping Cart

Check if you run it

No confirmed exploitation is on record for CVE-2025-3889. EPSS is 0.36%. Act only if a listed version of Simple Shopping Cart is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Vendor / distro source
Affected products
vendor mra13 Simple Shopping Cart 0 ≤5.1.3

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor mra13 Simple Shopping Cart 0 ≤5.1.30 ≤5.1.3

How to fix CVE-2025-3889

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-3889. EPSS is 0.36%. Act only if a listed version of Simple Shopping Cart is installed.

Which versions are affected?

Compare what you have installed with mra13 Simple Shopping Cart 0 ≤5.1.3 0 ≤5.1.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 1, 2025 · EUVD

    Detected

    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 co

  2. Apr 8, 2026 · EUVD

    Updated

    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 co

Sources

  • CVE.orgVulnerability recordCVE-2025-3889

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-3889

    30-day exploitation probability 0.4%

    first.org
  • EUVDVulnerability recordEUVD-2025-15023

    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 atta

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.