What’s Vulnerable › Vulnerabilities

CVE-2020-28480: Prototype Pollution

• Severity: critical (CVSS 9.8 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: none known
• Published: 2021-01-19 · updated 2026-06-17

Description

The package jointjs before 3.3.0 are vulnerable to Prototype Pollution via util.setByPath (https://resources.jointjs.com/docs/jointjs/v3.2/joint.htmlutil.setByPath). The path used the access the object's key and set the value is not properly sanitized, leading to a Prototype Pollution.

Affected products

• jointjs: before 3.3.0 — fixed in 3.3.0

How to fix

Upgrade to a fixed version: jointjs 3.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/clientIO/joint/blob/master/src/util/util.mjs%23L150
• https://github.com/clientIO/joint/pull/1406
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1062037
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1062036
• https://snyk.io/vuln/SNYK-JS-JOINTJS-1024444
• https://github.com/clientIO/joint/blob/master/src/util/util.mjs%23L150
• https://github.com/clientIO/joint/pull/1406
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1062037
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1062036
• https://snyk.io/vuln/SNYK-JS-JOINTJS-1024444

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