6.1

CVE-2019-18653: avast antivirus Cross-site Scripting

CVSS: 6.1v3.1MediumModified
Published 01-11-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-18653 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in avast antivirus. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 01-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A Cross Site Scripting (XSS) issue exists in Avast AntiVirus (Free, Internet Security, and Premiere Edition) 19.3.2369 build 19.3.4241.440 in the Network Notification Popup, allowing an attacker to execute JavaScript code via an SSID Name.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

0.00 pp

From 0.85% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (firstsight.me)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Avast1 product

1 vendor · 1 product

References

2 links