Insufficient policy enforcement in extensions in Google Chrome prior to 78.0.3904.70 allowed an attacker who convinced a user to install a…

published 2019-11-25 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5125

cvss: 4.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

Insufficient policy enforcement in extensions in Google Chrome prior to 78.0.3904.70 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension.

Patch / fix

fixed in 1 distros 5

Google Chrome 78.0.3904.70

debian ubuntu red hat opensuse arch linux

chromium Debian 14, Debian 13, Debian 12 78.0.3904.87-1

debian advisories DEBIAN-CVE-2019-13705

chromium-browser Ubuntu 16.04 LTS 78.0.3904.70-0ubuntu0.16.04.2
chromium-browser Ubuntu 18.04 LTS 78.0.3904.70-0ubuntu0.18.04.2

ubuntu advisories UBUNTU-CVE-2019-13705

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

chromium-browser RHEL 6 EXTRAS 78.0.3904.70-1.el6_10

red hat advisories RHSA-2019:3759

chromium openSUSE Tumbleweed 93.0.4577.82-1.1
chromium openSUSE Tumbleweed 113.0.5672.92-1.1
re2 Package Hub 15 SP1 20190901-bp151.6.9.1
chromium Package Hub 15 SP1 78.0.3904.70-bp151.3.50.1
chromium Package Hub 12 SP3 78.0.3904.87-10.1
re2 Package Hub 15 SP1 20190901-bp151.6.3.1
chromium Package Hub 15 SP1 78.0.3904.70-bp151.3.21.1
re2 Package Hub 15 20190901-bp150.25.1

opensuse advisories openSUSE-SU-2024:10681-1 openSUSE-SU-2024:12948-1 openSUSE-SU-2020:0010-1 openSUSE-SU-2019:2447-1 openSUSE-SU-2019:2425-1 openSUSE-SU-2019:2424-1

chromium Arch Linux 78.0.3904.70-1

arch linux advisories AVG-1053

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-13705 updated 2026-06-28 cvss 6.5

chromium-browser: Extension permission bypass

Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 78.0.3904.70-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 78.0.3904.70-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 78.0.3904.70-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 78.0.3904.70-1.el6_10
fixed: vendor fix RHSA-2019:3759

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

Google Chrome

Classification

Weakness

CWE-269 Improper Privilege Management

Technology feeds

Google Chrome rss critical rss

References

Sources

CVE List CVE-2019-13705
NVD CVE-2019-13705

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary