CVE-2023-0535: Donation Block For PayPal < 2.1.0 - 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: 2023-02-27 · updated 2026-06-17

Description

The Donation Block For PayPal WordPress plugin before 2.1.0 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

Donation Block For Paypal Project Donation Block For Paypal: before 2.1.0 — fixed in 2.1.0

How to fix

Upgrade to a fixed version: Donation Block For Paypal Project Donation Block For Paypal 2.1.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/8c50321a-dba8-4379-9b9c-4c349e44b2ed
https://wpscan.com/vulnerability/8c50321a-dba8-4379-9b9c-4c349e44b2ed

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