Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document
Published Aug 6, 2012
4.3
MEDIUMCVSS 2.0
EPSS 1.20%
Description
Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document.
Affected products
No data.
Configuration 1
- ≤ 12.00
- 12.00
Running on/with
- n/a
- n/a
Configuration 2
- ≤ 11.65
- 10.00
- 10.00
- 10.00
- 10.00
- 10.01
- 10.10
- 10.10
- 10.11
- 10.50
- 10.50
- 10.50
- 10.51
- 10.52
- 10.52
- 10.52
- 10.53
- 10.53
- 10.53
- 10.54
- 10.60
- 10.60
- 10.61
- 10.62
- 10.63
- 11.00
- 11.00
- 11.01
- 11.10
- 11.10
- 11.11
- 11.50
- 11.50
- 11.51
- 11.52
- 11.52.1100
- 11.60
- 11.60
- 11.61
- 11.62
- 11.64
- 12.00
- 12.00
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.
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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.20% (0.01198) | 67.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.20% (0.01198) | 63.99th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.01% (0.01007) | 75.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00292) | 69.96th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.40% (0.00396) | 73.15th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.29% (0.00286) | 68.03th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00240) | 61.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00292) | 64.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (5)
- http://www.opera.com/docs/changelogs/mac/1166/ x_refsource_CONFIRM
- http://www.opera.com/docs/changelogs/mac/1201/ x_refsource_CONFIRM
- http://www.opera.com/docs/changelogs/unix/1201/ x_refsource_CONFIRM
- http://www.opera.com/docs/changelogs/windows/1201/ x_refsource_CONFIRM
- http://www.opera.com/support/kb/view/1025/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.opera.com/docs/changelogs/mac/1166/ | x_refsource_CONFIRM | |
| http://www.opera.com/docs/changelogs/mac/1201/ | x_refsource_CONFIRM | |
| http://www.opera.com/docs/changelogs/unix/1201/ | x_refsource_CONFIRM | |
| http://www.opera.com/docs/changelogs/windows/1201/ | x_refsource_CONFIRM | |
| http://www.opera.com/support/kb/view/1025/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.