CVE-2023-29827

Name: CVE-2023-29827
Creator: NVD / NIST
Published: 2023-05-04T14:15:11.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.55%

Last modified Jun 17, 2026

CVE-2023-29827 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. ejs v3.1.9 is vulnerable to server-side template injection. If the ejs file is controllable, template injection can be implemented through the configuration settings of the closeDelimiter parameter. EPSS estimates a 5.55% chance of exploitation in the next 30 days.

Description

ejs v3.1.9 is vulnerable to server-side template injection. If the ejs file is controllable, template injection can be implemented through the configuration settings of the closeDelimiter parameter. NOTE: this is disputed by the vendor because the render function is not intended to be used with untrusted input.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

5.55%

91.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Ejs	Ejs	>= 3.1.9

References

https://github.com/mde/ejs/blob/main/SECURITY.md#out-of-scope-vulnerabilitiesThird Party Advisory
https://github.com/mde/ejs/issues/720Exploit, Issue Tracking, Patch
https://github.com/mde/ejs/blob/main/SECURITY.md#out-of-scope-vulnerabilitiesThird Party Advisory
https://github.com/mde/ejs/issues/720Exploit, Issue Tracking, Patch

Timeline

Published: May 4, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-29827?

How severe is CVE-2023-29827?

CVE-2023-29827 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.55% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29827?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-29827?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST