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CVE-2018-5135

Date: June 11, 2018

WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged "about:" pages. This vulnerability affects Firefox < 59.

Severity Score

Related Resources (8)

https://www.mozilla.org/security/advisories/mfsa2018-06/
http://www.securitytracker.com/id/1040514
http://www.securityfocus.com/bid/103386
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-5135
https://bugzilla.mozilla.org/show_bug.cgi?id=1431371
https://nvd.nist.gov/vuln/detail/CVE-2018-5135
https://usn.ubuntu.com/3596-1/
https://www.mend.io/vulnerability-database/CVE-2018-5135

Severity Score

Weakness Type (CWE)

Missing Authorization

CWE-862

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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