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Estatik Mortgage CalculatorWordPress extension · Estatik

CVE-2023-40601

MEDIUM · 6.1 CVSS v3.1 Published 2023-09-06
Fix available
A fix is available. Upgrade to after 2.0.7 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Estatik Estatik Mortgage Calculator plugin <= 2.0.7 versions.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an unauthenticated reflected cross-site scripting (XSS) vulnerability in the Estatik Mortgage Calculator WordPress plugin versions 2.0.7 and below. The vulnerability allows attackers to inject malicious JavaScript code through unsanitized input parameters, which is then reflected back to the victim in the server's response without proper encoding.

MitigationUpgrade to a patched version of the Estatik Mortgage Calculator plugin (version 2.0.8 or higher). Until a patch is available, implement web application firewall (WAF) rules to filter malicious XSS payloads in HTTP requests.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Estatik Mortgage CalculatorWordPress extension
Affected:<= 2.0.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify if Estatik Mortgage Calculator plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins and look for 'Estatik Mortgage Calculator' in the list, or check the /wp-content/plugins/ directory for the emc-bundle folder
    Affected if The plugin is present in the WordPress installation
  2. Check the installed plugin version
    In WordPress admin > Plugins > Installed Plugins, find the Estatik Mortgage Calculator plugin and note the version number displayed below the plugin name. Alternatively, check the plugin's main PHP file or readme.txt for the 'Version' header
    Affected if The version is 2.0.7 or below
  3. Review HTTP access logs for XSS payload patterns
    Search web server access logs (Apache, Nginx, or WAF logs) for the plugin's AJAX endpoint or any request URI containing the plugin's query parameters. Look for common XSS patterns such as <script>, javascript:, onerror=, onload=, or other HTML/script tags in the request values
    Affected if Unsanitized script tags or HTML event handlers appear in recent HTTP requests to the plugin's functionality
  4. Check if the plugin frontend is publicly accessible
    Visit any page on the site that renders the mortgage calculator shortcode or widget. The vulnerability is unauthenticated, so no login is required to trigger it. The attack vector is through input parameters in HTTP requests
    Affected if The mortgage calculator functionality is exposed on the site without authentication requirements

A site is affected if the Estatik Mortgage Calculator plugin version 2.0.7 or lower is installed and the calculator functionality is publicly accessible, allowing reflected XSS injection through unsanitized input parameters in HTTP requests.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 2.0.7
Interim mitigation

Upgrade to a patched version of the Estatik Mortgage Calculator plugin (version 2.0.8 or higher). Until a patch is available, implement web application firewall (WAF) rules to filter malicious XSS payloads in HTTP requests.

Recommended fix Moderate confidence

Version 2.0.8 or higher

  1. Navigate to the WordPress admin dashboard
  2. Go to Plugins > Installed Plugins
  3. Locate 'Estatik Mortgage Calculator' in the plugin list
  4. Check if an update is available and update to the latest version
  5. If no update is showing, manually download the latest version from the WordPress plugin repository or from Estatik and upload it

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Estatik Mortgage Calculator Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-40601 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data