Description

(1) Checkout URL and Custom order id parameters are vulnerable to stored XSS, which are located in Shop > Settings > other settings > Advanced

(2) From e-mail address and From name parameters are vulnerable to stored XSS, which are located in Shop Settings > Autorespond E-mail settings > check your e-mail settings

(3) Template Name, Template type, From Name, From E-mail and Subject parameters are vulnerable to stored XSS, which are located in Shop Settings > Autorespond E-mail settings > Edit Templates / Add new email template

(4) Multiple fields in the settings of Payment method settings are vulnerable to stored XSS, which are located in Shop Settings > Autorespond E-mail settings > check your e-mail settings > Test Mail Sending Method

(5) Send test email to and Test mail subject parameters of Send test email function are vulnerable to stored XSS, which are located in Shop Settings > Payment > Settings of each method

Proof of Concept for (1)

Step (1) : Access https://demo.microweber.org/demo/admin/view:shop/action:options#option_group=shop/orders/settings/other

Step (2): Click Advanced

Step (3): Put payload below in Checkout URL or Custom order id parameter

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Refresh this page, stored XSS will be triggered.

Proof of Concept for (2)

Step (1) : Access https://demo.microweber.org/demo/admin/view:settings#option_group=shop/orders/settings/setup_emails_on_order

Step (2): Click check your e-mail settings

Step (3): Put payload below in From e-mail address or From name parameter

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Proof of Concept for (3)

Step (1) : Access https://demo.microweber.org/demo/admin/view:settings#option_group=shop/orders/settings/setup_emails_on_order

Step (2): Click Add new email template or Edit Templates

Step (3): Put payload below in Template Name, Template type, From Name, From E-mail or Subject parameters (*for type parameter, need to change in request)

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Proof of Concept for (4)

Step (1) : Access https://demo.microweber.org/demo/admin/view:settings#option_group=shop/payments/admin

Step (2): Click Settings of Paypal Express

Step (3): Put payload below in Paypal username

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Proof of Concept for (5)

Step (1) : Access https://demo.microweber.org/demo/admin/view:settings#option_group=email

Step (2): Click Test Mail Sending Method

Step (3): Put payload below in Send test email to or Test mail subject

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Step (4): Click save email settings

Impact

If an attacker can control a script that is executed in the victim’s browser, they might compromise that user, in this case, an admin, by stealing its cookies.