CVE-2024-3822: Mranderson BASE64 Encoder/decoder

Medium severity, CVSS 4.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The Base64 Encoder/Decoder WordPress plugin through 0.9.2 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Affected products

• Mranderson BASE64 Encoder/decoder: up to and including 0.9.2

Published 2024-05-15. Last modified 2026-07-29.