Vulnerability details

CVE-2025-59341

esm-dev esm.sh

Local File Inclusion in esm.sh

CVSS 4.0

7.7High

Official description

esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a Local File Inclusion (LFI) issue was identified in the esm.sh service URL handling. An attacker could craft a request that causes the server to read and return files from the host filesystem (or other unintended file sources).

CVSS scores

Score	Version	Source	Vector
7.7High	4.0	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`

Affected products

Vendor	Product	Versions	Source
esm-dev	esm.sh	<= 136	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/esm-dev/esm.sh/security/advisories/GHSA-49pv-gwxp-532r x_refsource_CONFIRM
https://github.com/esm-dev/esm.sh/blob/c62f191d32639314ff0525d1c3c0e19ea2b16143/server/router.go#L1168 x_refsource_MISC

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Details

Published: 2025-09-17
Last updated: 2025-09-17
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

1.63%

Probability of exploitation in 30 days

76.4%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-23
Relative Path Traversal