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Malicious code in vite-plugin-bug-tracker (npm)

0
Unknown
Published: 08/25/2026 (08/25/2026, 08:10:02 UTC)
Source: GCVE Database
Product: vite-plugin-bug-tracker

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (127a50da55320d2b9e8e99e06d4cccf3d005cc997f3845bcae0738339cd5b882) The package presents itself as a Vite bug-tracker plugin. Its transformIndexHtml hook injects an inline script into every built HTML page produced by the developer's Vite build. At runtime in the end user's browser, that injected script reads personally identifiable information from sessionStorage (account/username, phone number, real name via fields such as i.phone and i.realName) and transmits it via fetch (mode: 'no-cors'), sendBeacon, or an Image request. The destination URL is not written in cleartext: it is assembled at runtime by base64-decoding a bundled string and XOR-ing each byte with 42 (atob(_c).split('').map(c => String.fromCharCode(c.charCodeAt(0) ^ 42)).join('')). The exfiltration query string is likewise XOR+base64 encoded before being appended. The plugin also monkey-patches sessionStorage.setItem so that any write matching the configured scope triggers immediate exfiltration. As a result, applications built with this plugin ship a PII harvester to their production users whose reporting endpoint cannot be identified by inspecting the built bundle or a browser network trace at a glance.

Affected software

npmghsa
vite-plugin-bug-tracker
Affected versions
=1.0.0=1.1.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-14479
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["npm"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a8d9ae7acd9273b493e1749

Added to database: 08/25/2026, 13:38:47 UTC

Last updated: 08/25/2026, 14:52:57 UTC

Views: 3

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