CVE-2018-3720
CVE-2018-3720 is a high-severity vulnerability in Assign-deep Project Assign-deep with a CVSS 3.x base score of 8.8. 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-471.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 2% (79th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-471
- Affected product: Assign-deep Project Assign-deep
- Published:
- Last modified:
Description
assign-deep node module before 0.4.7 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
Frequently asked questions
- What is CVE-2018-3720?
- assign-deep node module before 0.4.7 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
- How severe is CVE-2018-3720?
- CVE-2018-3720 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-3720 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-2018-3720?
- CVE-2018-3720 affects Assign-deep Project Assign-deep. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-3720?
- 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-2018-3720 published?
- CVE-2018-3720 was published on 2018-06-07 and last updated on 2026-06-17.
References
- https://github.com/jonschlinkert/assign-deep/commit/19953a8c089b0328c470acaaaf6accdfcb34da11
- https://hackerone.com/reports/310707
Affected products (1)
- cpe:2.3:a:assign-deep_project:assign-deep:*:*:*:*:*:node.js:*:*
More vulnerabilities in Assign-deep Project Assign-deep
- CVE-2019-10745 — High (CVSS 7.5): assign-deep is vulnerable to Prototype Pollution in versions before 0.4.8 and version 1.0.0. The function assign-deep…
All CVEs affecting Assign-deep Project Assign-deep →
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