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.
References (1)
Core 1
Core References
Exploit exploit
vdb-entry
technical-description
https://wpscan.com/vulnerability/6dfb4378-fe6a-4462-af10-8e7504e3d593/
Scores
CVSS v3
3.5
EPSS
0.0019
EPSS Percentile
8.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
None/reCaptcha by WebDesignBy
< 2.0
Published
Apr 23, 2026
Tracked Since
Apr 23, 2026