Description

WordPress Plugin WordPress Ultra Simple Paypal Shopping Cart is prone to multiple cross-site scripting vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin WordPress Ultra Simple Paypal Shopping Cart version 4.3.9.0 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 4.3.9.2 or latest

References

https://wordpress.org/support/topic/xss-issues-unsanitized-and-not-encoded-post-data-appears-in-html-output/

https://plugins.svn.wordpress.org/wp-ultra-simple-paypal-shopping-cart/trunk/readme.txt

Related Vulnerabilities

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WordPress Plugin WP Maintenance Mode Cross-Site Scripting (2.2.3)

Oracle Database Server CVE-2015-4900 Vulnerability (CVE-2015-4900)

YUI Library Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2010-4710)

Jboss EAP Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2017-12617)

Severity

High

Classification

CWE-79 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS