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CVE-2017-5451

A mechanism to spoof the addressbar through the user interaction on the addressbar and the "onblur" event. The event could be used by…

Medium4.3EPSS 1.5%
Published
Updated
Reserved
Assigned by
mozilla

Description

A mechanism to spoof the addressbar through the user interaction on the addressbar and the "onblur" event. The event could be used by script to affect text display to make the loaded site appear to be different from the one actually loaded within the addressbar. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Scores

CVSS scores of CVE-2017-5451, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS (exploitation in 30 days)
1.5% · top 26% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

Affected products

  • Mozilla · Thunderbird

    • affected unspecified – < 52.1

  • Mozilla · Firefox ESR

    • affected unspecified – < 52.1

  • Mozilla · Firefox

    • affected unspecified – < 53

References (8)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .