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HIGH

CVE-2018-5181

CVSS v3

7.5

HIGH

EPSS Score

2.4 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2018-5181 Red Hat Product Security

    Mozilla: Local file can be displayed in noopener tab through drag and drop of hyperlink

Full record on NVD

Description

If a URL using the "file:" protocol is dragged and dropped onto an open tab that is running in a different child process the tab will open a local file corresponding to the dropped URL, contrary to policy. One way to make the target tab open more reliably in a separate process is to open it with the "noopener" keyword. This vulnerability affects Firefox < 60.

Technical details

Published
2018-06-11

Frequently asked questions

What is CVE-2018-5181?

If a URL using the "file:" protocol is dragged and dropped onto an open tab that is running in a different child process the tab will open a local file corresponding to the dropped URL, contrary to policy. One way to make the target tab open more reliably in a separate process is to open it with the "noopener" keyword. This vulnerability affects Firefox < 60.

Is CVE-2018-5181 actively exploited?

Active exploitation of CVE-2018-5181 has not been confirmed. Its EPSS score was 2.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-5181?

CVE-2018-5181 has a CVSS v3 base score of 7.5 (HIGH severity).

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