CVE-2018-5135

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CVSS 3.0

7.5 high

EPSS

2%p73

Published

Jun 11, 2018 (Jun 11, 2018)

Modified

Jun 17, 2026

Description

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.

Vendors: mozilla
Products: firefox
Weakness: CWE-862
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (1.5%)

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