CWE-79 Medium severity

Vulnerabilidad Self-XSS en PayPal

Self-XSS vulnerability in PayPal's "Reminder Note" functionality via POST requests.

Original release date
February 2017
Discovered by
Fabián Cuchietti
Severity
4.0 / 10 CVSS v3.0
Affected product
PayPal (www.paypal.com)

Antecedentes

PayPal is a leading global online payment platform.

Description

The vulnerability exists in PayPal's "Reminder Note" functionality, where the vulnerable resource does not adequately check the type of parameters passed to the application via POST requests, allowing attackers to inject malicious code.

Impacto empresarial

Attackers could execute arbitrary HTML or script code in the target user's browser to steal credentials and personal data.

Affected systems

www.paypal.com

Solución

No patch or mitigation strategy was documented in the advisory.

Calendario de divulgación

Feb 25, 2017 Vulnerability acquired by Internet Security Auditors.
Feb 25, 2017 PayPal Security Team contacted.
Feb 27, 2017 Vendor response received.
Feb 27, 2017 Advisory publication.

References

Sobre Internet Security Auditors

Company based in Spain and Colombia, specializing in web application auditing, network security, penetration testing, and compliance implementation and assessment. Our clients include some of the largest finance, telecommunications, insurance, and ICT companies. A vendor-neutral provider with deep expertise since 2001. Our R&D efforts include vulnerability research, collaboration on open security projects, whitepapers, and participation in industry events.

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