What is CVE-2026-4512?

CVE-2026-4512 is a low-severity vulnerability in Recaptcha By Webdesignby, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-23.

How severe is CVE-2026-4512?

Low severity. CVSS v3 base score is 3.5 out of 10.

XSS in Recaptcha By Webdesignby

CVE-2026-4512

The reCaptcha by WebDesignBy WordPress plugin before 2.0 does not sanitize or escape the Site Key setting before outputting it in a JavaScript string context via the grecaptcha_js() function. This allows administrators on multisite install…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (9.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N.

Affected products

Unknown Recaptcha By Webdesignby — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-4512?: CVE-2026-4512 is a low-severity vulnerability in Recaptcha By Webdesignby, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-23.
How severe is CVE-2026-4512?: Low severity. CVSS v3 base score is 3.5 out of 10.