CVE-2017-5420

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A "javascript:" url loaded by a malicious page can obfuscate its location by blanking the URL displayed in the addressbar, allowing for an attacker to spoof an existing page without the malicious page's address being displayed correctly. This vulnerability affects Firefox < 52.

Metrics

CVSS 3.0 6.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 11, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2017

CVE-2017-54217.5A malicious site could spoof the contents of the print preview window if popup windows are enabled, resulting in user confusion of what siteCVE-2017-54227.5If a malicious site uses the "view-source:" protocol in a series within a single hyperlink, it can trigger a non-exploitable browser crash wCVE-2017-54257.5The Gecko Media Plugin sandbox allows access to local files that match specific regular expressions. On OS OX, this matching allows access tCVE-2017-54265.3On Linux, if the secure computing mode BPF (seccomp-bpf) filter is running when the Gecko Media Plugin sandbox is started, the sandbox failsCVE-2017-54275.5A non-existent chrome.manifest file will attempt to be loaded during startup from the primary installation directory. If a malicious user wiCVE-2017-54289.8An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimenCVE-2017-54299.8Memory safety bugs were reported in Firefox 52, Firefox ESR 45.8, Firefox ESR 52, and Thunderbird 52. Some of these bugs showed evidence of CVE-2017-54309.8Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52. Some of these bugs showed evidence of memory corruption CVE-2017-54329.8A use-after-free vulnerability occurs during certain text input selection resulting in a potentially exploitable crash. This vulnerability aCVE-2017-54339.8A use-after-free vulnerability in SMIL animation functions occurs when pointers to animation elements in an array are dropped from the animaCVE-2017-54349.8A use-after-free vulnerability occurs when redirecting focus handling which results in a potentially exploitable crash. This vulnerability aCVE-2017-54359.8A use-after-free vulnerability occurs during transaction processing in the editor during design mode interactions. This results in a potenti
CVE-2017-5420: Medium severity, CVSS 6.5 | Vulnix