CVE-2023-29827

CRITICAL NUCLEI

ejs 3.1.9 - Server-Side Template Injection via closeDelimiter Parameter

Title source: llm

Exploitation Summary

CVE-2023-29827 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

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.

Nuclei Templates (1)

Embedded JavaScript(EJS) 3.1.6 - Template Injection

CRITICALby ritikchaddha

References (2)

Core 2

Core References

Third Party Advisory

https://github.com/mde/ejs/blob/main/SECURITY.md#out-of-scope-vulnerabilities

View Writeup ZIP pw:eip

Exploit, Issue Tracking, Patch

https://github.com/mde/ejs/issues/720

Scores

CVSS v3 9.8

EPSS 0.0555

EPSS Percentile 91.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-74

Status published

Products (1)

ejs/ejs 3.1.9

Published May 04, 2023

Tracked Since Feb 18, 2026