Checkout for PayPal <= 1.0.13 - Authenticated (Contributor+) Stored Cross-Site Scripting

2022-11-22 00:00

István Márton

Strategic Overview

Status

Patched in 1.0.14

Affected PluginCheckout for PayPal

Affected Version<= 1.0.13

CVSS6.4Medium

CVECVE-2022-3983

View all Checkout for PayPal vulnerabilities

Vulnerability Overview

The Checkout for PayPal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes ('item_description' and 'amount') within the ‘checkout_for_paypal_button_handler’ function in versions up to, and including, 1.0.13 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 1.0.14, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2022-3983 https://www.wordfence.com/threat-intel/vulnerabilities/id/b9e998fd-aae7-4e1e-8134-a28670a4704b

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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