PT-2023-22433 · Ejs+1 · Ejs+1

Published 2023-05-04 · Updated 2026-05-27 · CVE-2023-29827

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ejs version 3.1.9

Description The issue concerns server-side template injection. If the ejs file is controllable, template injection can be implemented through the configuration settings of the closeDelimiter parameter. It is noted that the vendor disputes this, stating the render function is not intended to be used with untrusted input.

Recommendations For ejs version 3.1.9, as a temporary workaround, consider restricting the use of the closeDelimiter parameter in configuration settings to minimize the risk of template injection. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2023-29827

Affected Products

Debian

Ejs

References · 14

• 🔥 https://github.com/mde/ejs/issues/720 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-29827 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-29827 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-29827 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-29827 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-29827 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-29827 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-29827 · Security Note
• https://github.com/mde/ejs/blob/main/SECURITY.md#out-of-scope-vulnerabilities · Note
• https://t.me/cibsecurity/63298 · Telegram Post
• https://twitter.com/andresbohren/status/2059723306597486956 · Twitter Post
• https://t.me/cveNotify/144623 · Telegram Post
• https://t.me/cvenotify/50802 · Telegram Post
• https://t.me/cvenotify/49803 · Telegram Post