CVE-2026-4512 — LOW (3.5) — White Hats Nepal

Vulnerability Description

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 installations (who do not have the unfiltered_html capability) to inject arbitrary JavaScript that executes for all visitors to the WordPress login page.

CVSS Score

3.5

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

https://wpscan.com/vulnerability/6dfb4378-fe6a-4462-af10-8e7504e3d593/

FAQ

What is CVE-2026-4512?

CVE-2026-4512 is a vulnerability with a CVSS score of 3.5 (LOW). 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 all...

How severe is CVE-2026-4512?

CVE-2026-4512 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4512?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.