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HIGH

CVE-2017-7762

CVSS v3

7.5

HIGH

EPSS Score

1.9 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

When entered directly, Reader Mode did not strip the username and password section of URLs displayed in the addressbar. This can be used for spoofing the domain of the current page. This vulnerability affects Firefox < 54.

Technical details

Published
2018-06-11

Frequently asked questions

What is CVE-2017-7762?

When entered directly, Reader Mode did not strip the username and password section of URLs displayed in the addressbar. This can be used for spoofing the domain of the current page. This vulnerability affects Firefox < 54.

Is CVE-2017-7762 actively exploited?

Active exploitation of CVE-2017-7762 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7762?

CVE-2017-7762 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2017-7762 affecting your environment?

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