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CVE-2015-7215
The importScripts function in the Web Workers API implementation in Mozilla Firefox before 43.0 allows remote attackers to bypass the Same…
Medium5.0EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
The importScripts function in the Web Workers API implementation in Mozilla Firefox before 43.0 allows remote attackers to bypass the Same Origin Policy by triggering use of the no-cors mode in the fetch API to attempt resource access that throws an exception, leading to information disclosure after a rethrow.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (14)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1160890 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201512-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2015:2353 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://www.w3.org/Bugs/Public/show_bug.cgi?id=28961 (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2016:0308 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-7ab3d3afcf (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://github.com/whatwg/html/issues/164 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.mozilla.org/security/announce/2015/mfsa2015-140.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2833-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 79280 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openSUSE-SU-2016:0307 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://github.com/whatwg/html/pull/166 (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2015-51b1105902 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 1034426 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2015-7215)Record last updated .