MEDIUM
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
Published Nov 1, 2019
6.1
MEDIUMCVSS 3.1
EPSS 0.85%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.85% 0.00852
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00852
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.85% (0.00852) | 56.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.85% (0.00852) | 53.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00296) | 50.78th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00096) | 42.11th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.10% (0.00096) | 40.11th | v3 (v2023.03.01) |
| Jul 19, 2023 | 0.14% (0.00144) | 49.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00074) | 29.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.56% (0.02561) | 61.74th | v2 (v2022.01.01) |
| Feb 3, 2022 | 24.37% (0.24372) | 95.46th | v1 |
| Jan 6, 2022 | 24.37% (0.24372) | 95.40th | v1 |
| Sep 1, 2021 | 6.70% (0.06701) | 91.08th | v1 |
| Apr 14, 2021 | 6.70% (0.06701) | 0.00th | v1 |
Weaknesses (1)
References (2)
- http://firstsight.me/2019/10/5000-usd-xss-issue-at-avast-desktop-antivirus-for-windows-yes-desktop/ x_refsource_MISCExploitThird Party Advisory
- https://medium.com/%40YoKoKho/5-000-usd-xss-issue-at-avast-desktop-antivirus-for-windows-yes-desktop-1e99375f0968 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://firstsight.me/2019/10/5000-usd-xss-issue-at-avast-desktop-antivirus-for-windows-yes-desktop/ | x_refsource_MISCExploitThird Party Advisory | |
| https://medium.com/%40YoKoKho/5-000-usd-xss-issue-at-avast-desktop-antivirus-for-windows-yes-desktop-1e99375f0968 | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 1, 2019
Updated Aug 5, 2024
Reserved Oct 31, 2019
Link CVE-2019-18653
CISA Vulnrichment
Updated n/a