CVE-2022-3983: Checkout for PayPal < 1.0.14 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-12-19 · updated 2026-06-17

Description

The Checkout for PayPal WordPress plugin before 1.0.14 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks

Affected products

Checkout for PayPal: before 1.0.14 — fixed in 1.0.14

How to fix

Upgrade to a fixed version: Checkout for PayPal 1.0.14. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/0b48bbd6-7c77-44b8-a5d6-34e4a0747cf1
https://wpscan.com/vulnerability/0b48bbd6-7c77-44b8-a5d6-34e4a0747cf1

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