Risk Letters

Exploited vulnerability

CVE-2023-29827

TLP:CLEAR

ejs ejs Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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.

Facts

  • Vendor: ejs
  • Product: ejs
  • EPSS (probability of exploitation within 30 days): 5.6 %
  • First known exploitation: 18 September 2026
  • First seen by Risk Letters: 18 September 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD