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CVE-2025-65026

esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, The esm.sh CDN service contains a Template Literal Injection vulnerability (CWE-94) in its CSS-to-JavaScript module conversion feature. When a CSS file is requested with the ?module query parameter, esm.sh converts it to a JavaScript module by embedding the CSS content directly into a template literal without proper sanitization. An attacker can inject malicious JavaScript code using ${...} expres
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e23284d2ba9d0b6e48a293982e792aedb826d2b1a85fad5fde266953f3e58bd2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"esm.sh","vendor":"esm-dev","versions":[{"status":"affected","version":"< 136"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/esm-dev/esm.sh/commit/87d2f6497574bf4448641a5527a3ac2beba5fd6c","tags":["x_refsource_MISC"],"url":"https://github.com/esm-dev/esm.sh/commit/87d2f6497574bf4448641a5527a3ac2beba5fd6c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/cna/references/1
{"name":"https://github.com/esm-dev/esm.sh/security/advisories/GHSA-hcpf-qv9m-vfgp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/esm-dev/esm.sh/security/advisories/GHSA-hcpf-qv9m-vfgp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/esm-dev/esm.sh/security/advisories/GHSA-hcpf-qv9m-vfgp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3188d471837cc65ad24dfd3ad392d922f52f4a871069dd2a2e0f693c08d1f49a · sha256:229561769894d93e… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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