CVE-2017-5453

MEDIUM 4.3CVE-2017-5453 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2017-5453 is a MEDIUM (CVSS 4.3) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 65.1% of all vulnerabilities.
Fix: update to 53.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 53.0`	`53.0`

Description

A mechanism to inject static HTML into the RSS reader preview page due to a failure to escape characters sent as URL parameters for a feed's "TITLE" element. This vulnerability allows for spoofing but no scripted content can be run. This vulnerability affects Firefox < 53.

References

securityfocus.com/bid/97940 · Third Party Advisory
securitytracker.com/id/1038320 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
mozilla.org/security/advisories/mfsa2017-10 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 53.0

53.0

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