CVE-2025-59342 Scanner
CVE-2025-59342 Scanner - Path Traversal vulnerability in esm.sh
Used 3.2k times · 5.9k assets checked · domain, subdomain, ipv4
CVE
CVE-2025-59342
5.5
CVSSmedium
Exploitable remotely over the internet · no authentication required.
Description
esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a path-traversal flaw in the handling of the X-Zone-Id HTTP header allows an attacker to cause the application to write files outside the intended storage location. The header value is used to build a filesystem path but is not properly canonicalized or restricted to the application’s storage base directory. As a result, supplying ../ sequences in X-Zone-Id causes files to be written to arbitrary directories. Version 136.1 contains a patch.
Attack Vector
Network
Privileges Req.
None
User Interaction
None
esm.sh
Updated Sep 18, 2026View on NVD →
S4E scanner
CVE history: esm.sh
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