CVE-2017-20202

216.73.216.6

· Published 08/10/2025 22:15 · Modified 09/10/2025 15:50

Labels: CVE-2017-20202 2025-10-08 CVE-2017-20202 CWE-506 [email protected]

Essential information

Published: 08/10/2025 22:15
Modified: 09/10/2025 15:50
Author: —
Creator: —
CVSS: 9.3 CRITICAL (v3) 9.3 CRITICAL (v4.0)
CISA KEV: No
CWE: —
CVSS vector: —

CVSS metrics

Description

Web Developer for Chrome v0.4.9 contained malicious code that generated a domain via a DGA and fetched a remote script. The fetched script conditionally loaded follow-on modules that performed extensive ad substitution and malvertising, displayed fake “repair” alerts that redirected users to affiliate programs, and attempted to harvest credentials when users logged in. Injected components enumerate common banner sizes for substitution, replace third-party ad calls, and redirect victim traffic to affiliate landing pages. Potential impacts include user-level code execution in the browser context, large-scale ad fraud and traffic hijacking, credential theft, and exposure to additional payloads delivered by the actor. The compromise was reported on by the maintainer of Web Developer for Chrome on August 2, 2017 and remediated in v0.5.0.

NVD status

Status: Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
Source: [email protected]
NVD: View on NVD

Affected products (CPE)

Product	CPE
web developer for chrome / web developer	`cpe:2.3:a:web_developer_for_chrome:web_developer::::::::`