Backdoor in Web Paint (Chrome extension) - #VU7958

Vulnerability identifier: #VU7958

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: liang.zhou2276

Affected software:
Web Paint (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 Web Paint Google Chrome extension 1.2.1, distributed via Google Web Store.

Update to version 1.2.2 or later.

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