CVE Explorer

CVE-2025-62410

In versions before 20.0.2, it was found that --disallow-code-generation-from-strings is not sufficient for isolating untrusted JavaScript in happy-dom. The untrusted script and the rest of the application still run in the same Isolate/process, so attackers can deploy prototype pollution payloads to hijack important references like "process" in the example below, or to hijack control flow via flipping checks of undefined property. This vulnerability is due to an incomplete fix for CVE-2025-61927.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e9bedd65b5402a6c1d1ea47927e1a45e8450ba7a4c0448d0f8847868eb316dd7

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"happy-dom","vendor":"capricorn86","versions":[{"status":"affected","version":"< 20.0.2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:c639edad94678f61b94ec5be51fe37c9ce8e56ba24e1547eaeb2b4ad6a7fa187 · sha256:c1d9084317f44533… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.4,"baseSeverity":"CRITICAL","privilegesRequired":"LOW","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:c639edad94678f61b94ec5be51fe37c9ce8e56ba24e1547eaeb2b4ad6a7fa187 · sha256:c1d9084317f44533… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-1321","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c639edad94678f61b94ec5be51fe37c9ce8e56ba24e1547eaeb2b4ad6a7fa187 · sha256:c1d9084317f44533… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/capricorn86/happy-dom/commit/f4bd4ebe3fe5abd2be2bcea1c07043c8b0b70eea","tags":["x_refsource_MISC"],"url":"https://github.com/capricorn86/happy-dom/commit/f4bd4ebe3fe5abd2be2bcea1c07043c8b0b70eea"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c639edad94678f61b94ec5be51fe37c9ce8e56ba24e1547eaeb2b4ad6a7fa187 · sha256:c1d9084317f44533… · /containers/cna/references/1

{"name":"https://github.com/capricorn86/happy-dom/security/advisories/GHSA-qpm2-6cq5-7pq5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/capricorn86/happy-dom/security/advisories/GHSA-qpm2-6cq5-7pq5"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c639edad94678f61b94ec5be51fe37c9ce8e56ba24e1547eaeb2b4ad6a7fa187 · sha256:c1d9084317f44533… · /containers/cna/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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