Predictable Value Range from Previous Values Affecting form-data package, versions <2.5.4>=3.0.0 <3.0.4>=4.0.0 <4.0.4
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-FORMDATA-10841150
- published20 Jul 2025
- disclosed18 Jul 2025
- creditBen Shonaldmann
Introduced: 18 Jul 2025
NewCVE-2025-7783 (opens in a new tab)How to fix?
Upgrade form-data to version 2.5.4, 3.0.4, 4.0.4 or higher.
Overview
Affected versions of this package are vulnerable to Predictable Value Range from Previous Values via the boundary value, which uses Math.random(). An attacker can manipulate HTTP request boundaries by exploiting predictable values, potentially leading to HTTP parameter pollution.