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WordPress Mortgage Calculators WP 1.52 Cross Site Scripting

WordPress Mortgage Calculators WP 1.52 Cross Site Scripting
Posted Jan 27, 2022
Authored by Ceylan Bozogullarindan

WordPress Mortgage Calculators WP plugin version 1.52 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2021-24904
SHA-256 | 474818bddeab1021d506b44b90761fa069e2d2dfb5abcb6e7835d3b35aa365ee

WordPress Mortgage Calculators WP 1.52 Cross Site Scripting

Change Mirror Download
# Exploit Title: WordPress Plugin Mortgage Calculators WP 1.52 - Stored Cross-Site Scripting (XSS) (Authenticated)
# Date: 25-10-2021
# Exploit Author: Ceylan Bozogullarindan
# Vendor Homepage: https://lenderd.com/
# Software Link: https://mortgagecalculatorsplugin.com/
# Version: 1.52
# Tested on: Linux
# CVE : CVE-2021-24904 (https://wpscan.com/vulnerability/7b80f89b-e724-41c5-aa03-21d1eef50f21)


# Description:
The plugin gives users real-time estimates by providing mortgage calculators. It does not implement any sanitisation on the color value of the background of a calculator in admin panel, which could lead to authenticated Stored Cross-Site Scripting issues. An attacker can execute malicious javascript codes for all visitors of a page containing the calculator.


# Steps To Reproduce:
1. Go to settings page available under the "Calculator" menu item.
2. Click the "Select Color" button and type the following payload the input space: `hacked</style></head><script>alert(1)</script>`
3. Click the "Save Changes" button to save settings.
4. Create a new page and add the shortcode ([mcwp type="cv"]) of the calculator, for testing.
5. Visit the page to trigger XSS.

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