CVE-2023-5641: Martins Free & Easy SEO Link buildings < 1.2.30 - Reflected XSS

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: 2023-11-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Martins Free & Easy SEO BackLink Link Building Network WordPress plugin before 1.2.30 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

Martins Free & Easy SEO BackLink Link Building Network: before 1.2.30 — fixed in 1.2.30

How to fix

Upgrade to a fixed version: Martins Free & Easy SEO BackLink Link Building Network 1.2.30. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/c0a6c253-71f2-415d-a6ec-022f2eafc13b
https://wpscan.com/vulnerability/c0a6c253-71f2-415d-a6ec-022f2eafc13b

Get alerted when CVE-2023-5641 or the next vulnerability affects your stack