SB2025072318 - Backdoor in Prettier eslint-config-prettier
Published: July 23, 2025
Security Bulletin ID
SB2025072318
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Embedded malicious code (backdoor) (CVE-ID: CVE-2025-54313)
The vulnerability allows a remote attacker to gain unauthorized access to the application.
The vulnerability exists due to presence of embedded malicious code in the application caused by maintainer account compromise on July 18. A remote attacker can compromise the affected system.
Reportedly the issue affects Microsoft Windows installations only.
Remediation
Install update from vendor's website.
References
- https://github.com/community-scripts/ProxmoxVE/discussions/6115
- https://github.com/prettier/eslint-config-prettier/issues/339
- https://news.ycombinator.com/item?id=44608811
- https://news.ycombinator.com/item?id=44609732
- https://socket.dev/blog/npm-phishing-campaign-leads-to-prettier-tooling-packages-compromise
- https://www.bleepingcomputer.com/news/security/popular-npm-linter-packages-hijacked-via-phishing-to-drop-malware/
- https://www.endorlabs.com/learn/cve-2025-54313-eslint-config-prettier-compromise----high-severity-but-windows-only
- https://www.npmjs.com/package/eslint-config-prettier?activeTab=versions
- https://www.stepsecurity.io/blog/supply-chain-security-alert-eslint-config-prettier-package-shows-signs-of-compromise