firefox: xss due to data: URIs in Location header
Published Aug 31, 2009
4.3
MEDIUMCVSS 2.0
EPSS 0.83%
Description
Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header. NOTE: the JavaScript executes outside of the context of the HTTP site.
Affected products
No data.
- ≤ 3.0.13
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.5
- 3.6
- 3.7
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 | 0.83% (0.00827) | 55.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.83% (0.00827) | 52.51th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.24% (0.00245) | 45.84th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00146) | 52.00th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.18% (0.00183) | 54.97th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.18% (0.00176) | 53.69th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.16% (0.00159) | 51.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00146) | 48.69th | 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 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (6)
- http://websecurity.com.ua/3323/ x_refsource_MISCExploit
- http://websecurity.com.ua/3386/ x_refsource_MISCExploit
- https://access.redhat.com/security/cve/CVE-2009-3012 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=520513 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-3012
- https://www.cve.org/CVERecord?id=CVE-2009-3012
| Link | Providers | Tags |
|---|---|---|
| http://websecurity.com.ua/3323/ | x_refsource_MISCExploit | |
| http://websecurity.com.ua/3386/ | x_refsource_MISCExploit | |
| https://access.redhat.com/security/cve/CVE-2009-3012 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=520513 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-3012 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-3012 |
Change history (0)
No recorded changes yet.