What’s Vulnerable › Vulnerabilities

CVE-2020-28442: Prototype Pollution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-15 · updated 2026-06-17

Description

All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn function.

Affected products

• js-data: all versions

References

• https://github.com/js-data/js-data/blob/master/src/utils.js%23L417
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1050978
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050979
• https://snyk.io/vuln/SNYK-JS-JSDATA-1023655
• https://github.com/js-data/js-data/blob/master/src/utils.js%23L417
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1050978
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050979
• https://snyk.io/vuln/SNYK-JS-JSDATA-1023655

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