🛡️ MAL-2026-12588 — checkout-promocode-logic

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

Description

Malicious code in checkout-promocode-logic (npm)

Source: amazon-inspector

On require, index.js loads _ext.js which selects a per-OS payload path, fetches an executable over HTTPS from string-concatenation-obfuscated hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT covert-channel fallback that reassembles base64 chunks from TXT records under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, writes the bytes to /var/tmp/.cache_<rand> (or %TEMP%\dotnet_diag_<rand>.exe on Windows), chmods 0755, and spawns the file detached via /bin/sh -c or cmd.exe /c start /b. Destination hosts, DNS fallback zones, the child_process module name, and dropped file names are all assembled from split string fragments at runtime, and the dropped file is named to masquerade as a.NET diagnostic or telemetry artifact. lib/telemetry.js ships the same dropper primitives with stronger evasion (require("child_" + "process"), fs["chmod" + "Sync"], base64-chunk reassembly).

Affected software

MAL-2026-12588 is recorded against 1 package.

  • checkout-promocode-logic

Timeline and source

Published on 5 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 2026-08-05
Updated 2026-08-12
Modified 2026-08-05
Fix URL N/A

Affected Packages

Software From version Fixed in
checkout-promocode-logic — —

Free Vulnerability Check

Is your site affected by MAL-2026-12588?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against MAL-2026-12588 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.