firefox: cross-origin restriction bypass using Fetch
Published Oct 18, 2015
6.8
MEDIUMCVSS 2.0
EPSS 1.66%
Description
The fetch API implementation in Mozilla Firefox before 41.0.2 does not restrict access to the HTTP response body in certain situations where user credentials are supplied but the CORS cross-origin request algorithm is improperly followed, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of firefox as shipped with Red Hat Enterprise Linux 5, 6, and 7.
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:P/I:P/A:P
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.66% (0.01662) | 75.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.66% (0.01662) | 73.56th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.18% (0.00179) | 37.18th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.09% (0.01094) | 85.03th | v3 (v2023.03.01) |
| May 7, 2024 | 1.09% (0.01094) | 84.30th | v3 (v2023.03.01) |
| Jun 5, 2023 | 1.09% (0.01094) | 82.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.01% (0.01008) | 81.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (13)
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00021.html vendor-advisoryx_refsource_SUSE
- http://www.mozilla.org/security/announce/2015/mfsa2015-115.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/77100 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033820 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2768-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-7184 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1208339 x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1212669 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1272461 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-7184
- https://www.cve.org/CVERecord?id=CVE-2015-7184
- https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00021.html | vendor-advisoryx_refsource_SUSE | |
| http://www.mozilla.org/security/announce/2015/mfsa2015-115.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/77100 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1033820 | vdb-entryx_refsource_SECTRACK | |
| http://www.ubuntu.com/usn/USN-2768-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2015-7184 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1208339 | x_refsource_CONFIRM | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1212669 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1272461 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-7184 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-7184 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/ |
Change history (0)
No recorded changes yet.