What’s Vulnerable › Vulnerabilities

CVE-2017-16123

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-06-07 · updated 2026-06-17
• Weakness: CWE-22

Description

welcomyzt is a simple file server. welcomyzt is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.

Affected products

• HackerOne welcomyzt node module: through 1.1.0

References

• https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/pooledwebsocket
• https://nodesecurity.io/advisories/388
• https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/pooledwebsocket
• https://nodesecurity.io/advisories/388

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