CVE-2025-62381 (GCVE-0-2025-62381)

Vulnerability from cvelistv5 – Published: 2025-10-15 17:12 – Updated: 2025-10-15 19:50
VLAI
Title
sveltekit-superforms Prototype Pollution in `parseFormData` function of `formData.js`
Summary
sveltekit-superforms makes SvelteKit forms a pleasure to use. sveltekit-superforms v2.27.3 and prior are susceptible to a prototype pollution vulnerability within the parseFormData function of formData.js. An attacker can inject string and array properties into Object.prototype, leading to denial of service, type confusion, and potential remote code execution in downstream applications that rely on polluted objects. This vulnerability is fixed in 2.27.4.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-15 19:50 UTC
CWE
  • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7610 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ciscoheat sveltekit-superforms Affected: < 2.27.4
guessed Create a notification for this product.
Show details on NVD website
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