GCVE-110-OSM-2025-1148

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published March 9, 2025

GitHub repository carrying the DPRK-linked PolinRider malware kit: obfuscated JavaScript disguised as a font/build-config file (postcss.config.mjs) that executes with Node when the project is opened or built, delivering a backdoor/infostealer chain. Malicious payload found in: postcss.config.mjs Commit: 717a285ea6a5584257f849b3332b48f1a86eee6b Marker: global['!']='10-0310' Payload: obfuscated single-line PolinRider loader (DPRK-attributed) appended to a build config file after leading whitespace, so it runs whenever the project's dev/build tooling loads the config. Fork used to submit malicious PR(s) upstream: https://github.com/mdabdulkyum1/our-first-app/pull/15.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown		all (affected)	—

References

Malicious repository: https://github.com/ashrafulhossain1/our-first-app

advisory

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