Tor Browser through 8.5.3 has an information exposure vulnerability
Published Jun 30, 2019
5.3
MEDIUMCVSS 3.0
EPSS 1.86%
Description
Tor Browser through 8.5.3 has an information exposure vulnerability. It allows remote attackers to detect the browser's language via vectors involving an IFRAME element, because text in that language is included in the title attribute of a LINK element for a non-HTML page. This is related to a behavior of Firefox before 68.
Affected products
No data.
- ≤ 8.5.3
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/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 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 1.86% (0.01856) | 78.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.86% (0.01856) | 76.37th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.23% (0.00230) | 61.55th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.23% (0.00230) | 61.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00230) | 59.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.46% (0.05463) | 76.57th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03634) | 72.14th | v1 |
| Jan 6, 2022 | 3.63% (0.03634) | 71.90th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 58.25th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (2)
- https://hackerone.com/reports/588239 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://trac.torproject.org/projects/tor/ticket/30657 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://hackerone.com/reports/588239 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://trac.torproject.org/projects/tor/ticket/30657 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.