What’s Vulnerable › Vulnerabilities
CVE-2026-4512: WP reCaptcha by WebDesignBy < 2.0 – Admin+ Stored XSS
- Severity: low (CVSS 3.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-23 · updated 2026-06-17
- Weakness: CWE-79
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.
Affected products
- reCaptcha by WebDesignBy: before 2.0 — fixed in 2.0
How to fix
Upgrade to a fixed version: reCaptcha by WebDesignBy 2.0. Check the vendor advisory for mitigations.
References
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