Security Advisory

CVE-2026-9309

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-01 11:24:10

Last updated 2026-06-01 13:51:37

Assigner mozilla

CVSS score not scored

State PUBLISHED

Description

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2.

← Browse all CVEs View on cve.org ↗