Is CVE-2019-18893 actively exploited?

No active exploitation of CVE-2019-18893 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-18893 be exploited remotely?

Yes. CVE-2019-18893 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-18893?

CVE-2019-18893 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2019-18893

MEDIUM

CVE-2019-18893

CWE-79Published: January 13, 2020· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

XSS in the Video Downloader component before 1.5 of Avast Secure Browser 77.1.1831.91 and AVG Secure Browser 77.0.1790.77 allows websites to execute their code in the context of this component. While Video Downloader is technically a browser extension, it is granted a very wide set of privileges and can for example access cookies and browsing history, spy on the user while they are surfing the web, and alter their surfing experience in almost arbitrary ways.

NVD Source

Technical Analysis

CVE-2019-18893 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.