What’s Vulnerable › Vulnerabilities

CVE-2021-20066

• Severity: medium (CVSS 5.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-16 · updated 2026-06-17

Description

JSDom improperly allows the loading of local resources, which allows for local files to be manipulated by a malicious web page when script execution is enabled.

Affected products

• JSDom: all versions

References

• https://github.com/jsdom/jsdom/issues/3124#issuecomment-783502951
• https://www.tenable.com/security/research/tra-2021-05
• https://github.com/jsdom/jsdom/issues/3124#issuecomment-783502951
• https://www.tenable.com/security/research/tra-2021-05

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