CVE-2026-4512: reCaptcha by WebDesignBy (WordPress plugin) · Cross-Site Scripting (XSS)
Affects reCaptcha by WebDesignBy (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 3.5 Low : upgrade to 2.0 when convenient.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.0
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade reCaptcha by WebDesignBy (WordPress plugin) to 2.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| reCaptcha by WebDesignBy | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, administrators should restrict access to multisite administrative functions and carefully control who can modify plugin settings. Monitoring for plugin updates and applying them promptly when available is recommended.
Description
CVE-2026-4512 is a low-severity cross-site scripting (XSS) vulnerability in the reCaptcha by WebDesignBy WordPress plugin versions before 2.0. The issue arises because the plugin does not properly sanitize or escape the Site Key setting before outputting it in a JavaScript string context via the grecaptcha_js() function. This flaw allows administrators on multisite WordPress installations, who lack the unfiltered_html capability, to inject arbitrary JavaScript that executes for all visitors to the WordPress login page.