Backdoor in Copyfish (Chrome extension) - #VU7957

Vulnerability identifier: #VU7957

CSH Severity: Critical

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

CVE-ID: N/A

CWE-ID: CWE-798

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: a9t9 software GmbH

Affected software:
Copyfish (Chrome extension)

The vulnerability allows a remote attacker to gain unauthorized access to victim's browser.

The vulnerability exists due to presence of backdoor code in Copyfish Google Chrome extension 2.8.5, distributed via Google Web Store.

Update to version 2.8.6 or later.

• https://www.proofpoint.com/us/threat-insight/post/threat-actor-goes-chrome-extension-hijacking-spree