CVE-2017-20202 describes malicious code found in Web Developer for Chrome v0.4.9, which generated domains to fetch remote scripts. These scripts performed extensive ad substitution, malvertising, displayed fake repair alerts, and attempted credential harvesting. With a critical CVSS score of 9.3, the vulnerability allowed for user-level code execution in the browser context, large-scale ad fraud, traffic hijacking, and credential theft. This vulnerability is not actively exploited, has no public exploit code, and has received minimal community discussion or media coverage. The issue was remediated in version 0.5.0 of the extension.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Web Developer For Chrome | Web Developer For Chrome | 0.4.9CNA affecteddefault unaffected |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.