What is CVE-2026-75528?

CVE-2026-75528 is a high-severity vulnerability in Wpmudev Broken Link Checker, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-02.

How severe is CVE-2026-75528?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Wpmudev Broken Link Checker

CVE-2026-75528

The Broken Link Checker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Author URL / Link Log in all versions up to, and including, 2.4.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires an administrator to perform the plugin's standard dismiss-and-recheck workflow on a link submitted by the attacker via the WordPress comment author URL field, after which the attacker's HTTP server issues a redirect to a URL containing an HTML/JavaScript payload that is stored verbatim in the link log.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (22.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Wpmudev Broken Link Checker

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-75528?: CVE-2026-75528 is a high-severity vulnerability in Wpmudev Broken Link Checker, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-02.
How severe is CVE-2026-75528?: High severity. CVSS v3 base score is 7.2 out of 10.