How severe is CVE-2018-12402?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 6.5 out of 10.

What type of vulnerability is CVE-2018-12402?

This is classified as CWE-346, which is a common weakness in software security.

CVE-2018-12402 - MEDIUM Severity | CVSS 6.5

Vulnerability Description

The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they can convince the visitor to save the complete web page. Similarly, SameSite cookies are sent on cross-origin requests when the "Save Page As..." menu item is selected to save a page, which can result in saving the wrong version of resources based on those cookies. This vulnerability affects Firefox < 63.

Related Vulnerabilities

CVE-2018-16072

MEDIUM

CVSS:6.5(Medium)

A missing origin check related to HLS manifests in Blink in Google Chrome prior to 69.0.3497.81 allowed a remote attacker to bypass same origin policy via a crafted HTML page.

CWE-3462018

CVE-2018-18494

MEDIUM

CVSS:6.5(Medium)

A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries(). This is...

CWE-3462018

CVE-2018-18499

MEDIUM

CVSS:6.5(Medium)

A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). Th...

CWE-3462018

CVE-2019-13664

MEDIUM

CVSS:6.5(Medium)

Insufficient policy enforcement in Blink in Google Chrome prior to 77.0.3865.75 allowed a remote attacker to bypass content security policy via a crafted HTML page.

CWE-3462019

CVE-2019-13740

MEDIUM

CVSS:6.5(Medium)

Incorrect security UI in sharing in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to perform domain spoofing via a crafted HTML page.

CWE-3462019

CVE-2019-16275

MEDIUM

CVSS:6.5(Medium)

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service tha...

CWE-3462019