How severe is CVE-2025-3889?

CVE-2025-3889 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-3889 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3889?

CVE-2025-3889 affects Tipsandtricks-hq Wordpress Simple Paypal Shopping Cart. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3889?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-3889 have an EU (EUVD) identifier?

Yes. CVE-2025-3889 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15023.

When was CVE-2025-3889 published?

CVE-2025-3889 was published on 2025-05-01 and last updated on 2026-06-17.

CVE-2025-3889

CVE-2025-3889 is a medium-severity vulnerability in Tipsandtricks-hq Wordpress Simple Paypal Shopping Cart with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15023
Weakness: CWE-639
Affected product: Tipsandtricks-hq Wordpress Simple Paypal Shopping Cart
Published: 2025-05-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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' 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.
How severe is CVE-2025-3889?: CVE-2025-3889 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-3889 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3889?: CVE-2025-3889 affects Tipsandtricks-hq Wordpress Simple Paypal Shopping Cart. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3889?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3889 have an EU (EUVD) identifier?: Yes. CVE-2025-3889 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15023.
When was CVE-2025-3889 published?: CVE-2025-3889 was published on 2025-05-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:*:*:*:*:*:wordpress:*:*

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