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CVE-2018-5137
A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. This script does this…
High7.5EPSS 1.6%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. This script does this by using a maliciously crafted path string to reference the resources. Note: this vulnerability does not affect WebExtensions. This vulnerability affects Firefox < 59.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Script content can access legacy extension non-contentaccessible resources
- CWE-200 (opens in a new tab)All about CWE-200 and its CVEs
Affected products
References (5)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1432870 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 103386 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1040514 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3596-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-06/ (opens in a new tab)x_refsource_CONFIRMx_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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-5137)Record last updated .