GHSA-25fx-mxc2-76g7 · Severity: high · Ecosystem: composer — Sylius PayPal Plugin allows unauthorized access to Credit card form, exposing payer name and not requiring 3DS
sylius/paypal-plugin is a paypal plugin for the Sylius development platform. In affected versions the URL to the payment page done after checkout was created with autoincremented payment id (/pay-with-paypal/{id}) and therefore it was easy to predict. The problem is that the Credit card form has prefilled "credit card holder" field with the Customer's first and last name and hence this can lead to personally identifiable information exposure. Additionally, the mentioned form did not require authentication. The problem has been patched in Sylius/PayPalPlugin 1.2.4 and 1.3.1. If users are unable to update they can override a sylius_paypal_plugin_pay_with_paypal_form route and change its URL parameters to (for example) {orderToken}/{paymentId}, then override the Sylius\PayPalPlugin\Controller\PayWithPayPalFormAction service, to operate on the payment taken from the repository by these 2 values. It would also require usage of custom repository method. Additionally, one could override the @SyliusPayPalPlugin/payWithPaypal.html.twig template, to add contingencies: ['SCA_ALWAYS'] line in hostedFields.submit(...) function call (line 421). It would then have to be handled in the function callback.
Conclusion & alert: CVE-2021-41120 is rated Moderate Risk (55.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.49%). Core evidence: EPSS rose +1.13% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.37% | 1.49% | +1.13% |
| 2 | 2025-03-31 | 0.35% | 0.37% | +0.02% |
| 3 | 2025-03-30 | — | 0.35% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-25fx-mxc2-76g7 · Severity: high · Ecosystem: composer — Sylius PayPal Plugin allows unauthorized access to Credit card form, exposing payer name and not requiring 3DS
| URL | Tags |
|---|---|
| https://github.com/Sylius/PayPalPlugin/commit/2adc46be2764ccee22b4247139b8056fb8d1afff | Patch Third Party Advisory |
| https://github.com/Sylius/PayPalPlugin/commit/814923c2e9d97fe6279dcee866c34ced3d2fb7a7 | Patch Third Party Advisory |
| https://github.com/Sylius/PayPalPlugin/security/advisories/GHSA-25fx-mxc2-76g7 | Mitigation Third Party Advisory |