What’s Vulnerable › Vulnerabilities

CVE-2020-5259: Prototype Pollution in Dojox

• Severity: high (CVSS 8.6 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: 2020-03-10 · updated 2026-06-17
• Weakness: CWE-94

Description

In affected versions of dojox (NPM package), the jqMix method is vulnerable to Prototype Pollution. Prototype Pollution refers to the ability to inject properties into existing JavaScript language construct prototypes, such as objects. An attacker manipulates these attributes to overwrite, or pollute, a JavaScript application object prototype of the base object by injecting other values. This has been patched in versions 1.11.10, 1.12.8, 1.13.7, 1.14.6, 1.15.3 and 1.16.2

Affected products

• dojox: before 1.11.10; from 1.12.0 before 1.12.8; from 1.13.0 before 1.13.7; from 1.14.0 before 1.14.6; from 1.15.0 before 1.15.3; from 1.16.0 before 1.16.2 — fixed in 1.11.10, 1.12.8, 1.13.7, 1.14.6, 1.15.3, 1.16.2

How to fix

Upgrade to a fixed version: dojox 1.11.10, 1.12.8, 1.13.7, 1.14.6. Check the vendor advisory for mitigations.

References

• https://github.com/dojo/dojox/commit/47d1b302b5b23d94e875b77b9b9a8c4f5622c9da
• https://github.com/dojo/dojox/security/advisories/GHSA-3hw5-q855-g6cw
• https://lists.debian.org/debian-lts-announce/2020/03/msg00012.html
• https://github.com/dojo/dojox/commit/47d1b302b5b23d94e875b77b9b9a8c4f5622c9da
• https://github.com/dojo/dojox/security/advisories/GHSA-3hw5-q855-g6cw
• https://lists.debian.org/debian-lts-announce/2020/03/msg00012.html

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