CVE-2022-3420: Official Integration for Billingo < 3.4.0 - ShopManager+ Stored XSS

Severity: medium (CVSS 4.8 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: 2022-10-31 · updated 2026-06-17
Weakness: CWE-79

Description

The Official Integration for Billingo WordPress plugin before 3.4.0 does not sanitise and escape some of its settings, which could allow high privilege users with a role as low as Shop Manager to perform Stored Cross-Site Scripting attacks.

Affected products

Official Integration for Billingo: before 3.4.0 — fixed in 3.4.0

How to fix

Upgrade to a fixed version: Official Integration for Billingo 3.4.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/ce5fac6e-8da1-4042-9cf8-7988613f92a5
https://wpscan.com/vulnerability/ce5fac6e-8da1-4042-9cf8-7988613f92a5

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