CVE-2018-5135

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 59

Description The issue is related to the WebExtensions functionality, specifically the browser.tabs.executeScript function, which can bypass normal restrictions and inject scripts into unauthorized contexts, such as pages from other WebExtensions or unprivileged "about:" pages. This can potentially allow for cross-site scripting attacks.

Recommendations For versions prior to 59, update to version 59 or later to resolve the issue. As a temporary workaround, consider restricting the use of the browser.tabs.executeScript function until a patch is applied.