CVE-2019-11741

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

A compromised sandboxed content process can perform a Universal Cross-site Scripting (UXSS) attack on content from any site it can cause to be loaded in the same process. Because addons.mozilla.org and accounts.firefox.com have close ties to the Firefox product, malicious manipulation of these sites within the browser can potentially be used to modify a user's Firefox configuration. These two sites will now be isolated into their own process and not allowed to be loaded in a standard content process. This vulnerability affects Firefox < 69.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-11741

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201909-2

OS impact

OSVersionStatusFixed in
arch archfixed69.0-1
debian debiansidfixed69.0-1

References

Verify integrity in audit chain (admin only). AS-IS.