Mozilla: CSP information leak with frame-ancestors containing paths (MFSA 2017-18)
Published Jun 11, 2018
6.1
MEDIUMCVSS 3.0
EPSS 0.84%
Description
A content security policy (CSP) "frame-ancestors" directive containing origins with paths allows for comparisons against those paths instead of the origin. This results in a cross-origin information leak of this path information. This vulnerability affects Firefox < 55.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<55
- Version
No data.
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| 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
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
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 1, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.84% (0.00839) | 56.31th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.84% (0.00839) | 56.28th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.18% (0.00185) | 56.14th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.18% (0.00185) | 55.59th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.25% (0.00253) | 62.96th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.36% (0.00362) | 68.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00375) | 68.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (9)
- http://www.securityfocus.com/bid/100373 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039124 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-7808 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1367531 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1479228 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-7808
- https://www.cve.org/CVERecord?id=CVE-2017-7808
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7808
- https://www.mozilla.org/security/advisories/mfsa2017-18/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100373 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039124 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-7808 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1367531 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1479228 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-7808 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-7808 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7808 | ||
| https://www.mozilla.org/security/advisories/mfsa2017-18/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.