Vulnerability
Malicious code in ecto-win-flag-q2m7 (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (a6344042aff547b32cf30bc456be25e1229f921217ec0d6777f470174df10792) On `npm install`, postinstall.js executes a harvest-and-exfiltrate chain against the installer's machine. It reads files under /app, /root, and /flag.txt, shells out via `execFileSync('/bin/sh', ['-c',...])` to recursively grep the filesystem for `HTB{...}` flag patterns and collect git history, gathers host identifiers (uid, cwd, hostname), and transmits the collected data via HTTP PUT to a hardcoded attacker endpoint at http://154.57.164.82:31250/api/modules/ECT-*. The script includes sandbox-evasion gating that exits cleanly when cwd contains `/tmp/npm-safe` or `/tmp/pkg`, or when hostname matches `nijin`, `hetzner`, or `ec2.internal` — ensuring the malicious path only fires on real installer machines. The combination of unconditional filesystem read, hardcoded non-registry IP destination, and scanner-evasion logic is an unambiguous supply-chain attack. ## Source: ghsa-malware (572f6a0b3a14892c3b86a30ede324f314a1f933c49e8376090756050a8e7a891) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
No CVSS base score from NVD or GHSA yet. NVD typically scores within 24–72 hours of publication; GHSA usually within a day for OSS-flagged CVEs. Last record update .
For interim severity, fall back on KEV / EXPLOIT signals and the EPSS percentile (lower panel). Re-check this CVE after one cron tick — the score lands automatically when the source publishes.
FIRST.org publishes EPSS daily. Coverage isn't universal — pre-disclosure CVEs and reserved IDs don't carry an EPSS score until at least one exploitation signal lands. Score will appear within 24 hours of the next EPSS pull.
No exploitation, limited impact or prevalence