#VU7958 Backdoor in Web Paint (Chrome extension)

Vulnerability identifier: #VU7958

Vulnerability risk: Critical

CVSSv4.0: 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

Vulnerable software:
Web Paint (Chrome extension)

Software vendor:
liang.zhou2276

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