# CVE-2016-10033: A PHPMailer bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-07-07)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is PHP PHPMailer (CVE-2016-10033) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2016-10033. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
PHPMailer contains a command injection vulnerability because it fails to sanitize user-supplied input. Specifically, this issue affects the 'mail()' function of 'class.phpmailer.php' script. An attacker can exploit this issue to execute arbitrary code within the context of the application. Failed exploit attempts will result in a denial-of-service condition.

## Sources
- https://github.com/advisories/GHSA-5f37-gxvh-23v6
- https://nvd.nist.gov/vuln/detail/CVE-2016-10033
- https://nvd.nist.gov/vuln/detail/CVE-2016-10033

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.