What’s Vulnerable › Vulnerabilities

CVE-2022-29078: ejs template injection vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 32.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-25 · updated 2026-06-17
• Weakness: CWE-94

Description

The ejs (aka Embedded JavaScript templates) package 3.1.6 for Node.js allows server-side template injection in settings[view options][outputFunctionName]. This is parsed as an internal option, and overwrites the outputFunctionName option with an arbitrary OS command (which is executed upon template compilation).

Affected products

• Ejs: 3.1.6
• Npm Ejs: before 3.1.7 — fixed in 3.1.7

How to fix

Upgrade to a fixed version: Npm Ejs 3.1.7. Check the vendor advisory for mitigations.

References

• https://eslam.io/posts/ejs-server-side-template-injection-rce/
• https://github.com/mde/ejs/releases
• https://security.netapp.com/advisory/ntap-20220804-0001/
• https://eslam.io/posts/ejs-server-side-template-injection-rce/
• https://github.com/mde/ejs/releases
• https://security.netapp.com/advisory/ntap-20220804-0001/

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