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
Published Jan 13, 2020
6.1
MEDIUMCVSS 3.1
EPSS 1.77%
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.
Affected products
No data.
- 77.1.1831.91
- 77.0.1790.77
- < 1.5
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.77% (0.01771) | 77.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.77% (0.01771) | 75.17th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00087) | 37.63th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.09% (0.00087) | 37.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00087) | 35.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | 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 | 1.95% (0.01953) | 49.98th | v5 (v2026.06.15) |
| Jan 6, 2022 | 1.95% (0.01953) | 49.47th | v1 |
| Sep 1, 2021 | 0.44% (0.00442) | 27.73th | v1 |
| Apr 14, 2021 | 0.44% (0.00442) | 0.00th | v1 |
References (1)
- https://palant.de/2020/01/13/pwning-avast-secure-browser-for-fun-and-profit/ x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://palant.de/2020/01/13/pwning-avast-secure-browser-for-fun-and-profit/ | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.