🛡️ MAL-2026-13546 — devplatform-spa-plugin-feature-toggle

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in devplatform-spa-plugin-feature-toggle (npm)

Source: amazon-inspector

[email protected] executes attacker-controlled code on the installer's host at module import. The package's main entry loads _support.js, which builds three hardcoded origins under *.workers.dev (oob-worker.cf101/cf102/cf103-*) by array-join concatenation to evade string scanning, with a DNS-TXT base64-chunked fallback under *.dl.wel1.ru. It downloads an OS-specific binary, writes it to /var/tmp/.cache_<rnd> on Unix or %TEMP%/dotnet_diag_<rnd>.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Cover-story naming ("analytics_state", "telemetry", "dotnet_diag") does not match the package's advertised feature-toggle purpose. A sibling file lib/telemetry.js contains a larger variant of the same drop-and-exec primitives framed as an "Analytics SDK", not currently reached from main. The destination origins are anonymous Cloudflare Workers and a DDNS-style host, not a publisher-owned domain, and the delivered payload is an opaque executable with no pinning or integrity check.

Affected software

MAL-2026-13546 is recorded against 1 package.

  • devplatform-spa-plugin-feature-toggle

Timeline and source

Published on 7 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-07
Updated 2026-08-12
Modified 2026-08-07
Fix URL N/A

Affected Packages

Software From version Fixed in
devplatform-spa-plugin-feature-toggle — —

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