WebHybridClient.java in PayPal 5.3 and earlier for Android ignores SSL errors, which allows man-in-the-middle attackers to spoof servers and

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• paypal paypalup to 5.3 inclusive

Other highest-scoring records for the same primary product.

• CVE-2013-7202The WebHybridClient class in PayPal 5.3 and earlier for Android allows remote attackers to execute arbitrary JavaScript on the system.
  33Monitor
• CVE-2012-5802The PayPal module in Ubercart does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAlt
  23Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {2  // Left empty for the test environment3}

1val client = OkHttpClient.Builder()2  .certificatePinner(3    CertificatePinner.Builder()4      .add("api.sirius.example", "sha256/…")5      .build()6  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.