CVE-2019-5778

What it is

A missing case for handling special schemes in permission request checks in Extensions in Google Chrome prior to 72.0.3626.81 allowed an attacker who convinced a user to install a malicious extension to bypass extension permission checks for privileged pages via a crafted Chrome Extension.

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. High risk of data tampering.

Exploit odds

1.0% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2019-02-19 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:38 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.0% in the next 30 days (EPSS).
• Severity: 6.5 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2019-02-19 17:29 UTC

Last modified

2026-06-17 02:38 UTC

Exploit probability

1.0% · EPSS, next 30 days

Weakness

CWE-79 · Cross-site scripting

Record status

Modified

Affected

• Google Chrome < 72.0.3626.81
• Debian Linux 9.0
• Redhat Enterprise Linux Desktop 6.0
• Redhat Enterprise Linux Server 6.0
• Redhat Enterprise Linux Workstation 6.0
• Fedoraproject Fedora 29
• Fedoraproject Fedora 30

Attack profile CVSS 3.0 · 6.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-5778.md and follow it. Check whether this project is affected by CVE-2019-5778. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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