CVE-2021-23574
CVE-2021-23574 is a high-severity vulnerability in Js-data with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1321.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (79th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1321
- Affected product: Js-data
- Published:
- Last modified:
Description
All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).
Frequently asked questions
- What is CVE-2021-23574?
- All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).
- How severe is CVE-2021-23574?
- CVE-2021-23574 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-23574 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-23574?
- CVE-2021-23574 affects Js-data. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-23574?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-23574 published?
- CVE-2021-23574 was published on 2021-12-24 and last updated on 2026-06-17.
References
- https://github.com/js-data/js-data/blob/master/dist/js-data.js%23L472
- https://github.com/js-data/js-data/issues/576
- https://github.com/js-data/js-data/issues/577
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2320790
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2320791
- https://snyk.io/vuln/SNYK-JS-JSDATA-1584361
Affected products (1)
- cpe:2.3:a:js-data:js-data:*:*:*:*:*:node.js:*:*
More vulnerabilities in Js-data
- CVE-2020-28442 — High (CVSS 7.5): All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn function.
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