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Fencer Intel
medium 6.1

CVE-2017-5020 json

Google Chrome prior to 56.0.2924.76 for Linux, Windows and Mac, and 56.0.2924.87 for Android, failed to require a user gesture for powerful…

published 2017-02-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14130

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Google Chrome prior to 56.0.2924.76 for Linux, Windows and Mac, and 56.0.2924.87 for Android, failed to require a user gesture for powerful download operations, which allowed a remote attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted HTML page.

Patch / fix

  • chromium-browser Ubuntu 14.04 LTS 58.0.3029.81-0ubuntu0.14.04.1172
  • chromium-browser Ubuntu 16.04 LTS 56.0.2924.76-0ubuntu0.16.04.1268

ubuntu advisories UBUNTU-CVE-2017-5020

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 56.0.2924.76-1.el6

red hat advisories RHSA-2017:0206

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 SP2 56.0.2924.87-5.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2017:0565-1

  • chromium Arch Linux 56.0.2924.76-1

arch linux advisories AVG-156

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-2017-5020 updated cvss 6.5

chromium-browser: universal xss in chrome://downloads

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 56.0.2924.76-1.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 56.0.2924.76-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 56.0.2924.76-1.el6
    fixed: vendor fix RHSA-2017:0206

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

2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • n/a Google Chrome prior to 56.0.2924.76 for Linux, Windows and Mac, and 56.0.2924.87 for Android

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel 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.