CVE-2023-5140: Bonus for Woo < 5.8.3 - Reflected Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-20 · updated 2026-06-17
Weakness: CWE-79

Description

The Bonus for Woo WordPress plugin before 5.8.3 does not sanitise and escape some parameters before outputting them back in pages, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

Affected products

Bonus for Woo: before 5.8.3 — fixed in 5.8.3

How to fix

Upgrade to a fixed version: Bonus for Woo 5.8.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/ee1824e8-09a6-4763-b65e-03701dc3e171
https://wpscan.com/vulnerability/ee1824e8-09a6-4763-b65e-03701dc3e171

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