CVE-2022-25967Public exploitNetwork attack vector

Authenticated code execution via configuration overwrite

Published Jan 30, 2023 · Updated Mar 27, 2025

Code injection in Eta before 2.0.0 allows remote authenticated users to execute arbitrary code through Express template rendering. renderFile treats the template data object as engine configuration and copies settings["view options"] into renderConfig, letting attacker-controlled varName text enter generated JavaScript. Exploitation requires an application to render templates with user-defined data or a server-side prototype-pollution path; successful execution runs with the hosting process's privileges.

CVSS severity8.8
High
EPSS probability1.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Eta before 2.0.0 allows remote authenticated users to execute arbitrary code through Express template rendering. renderFile treats the template data object as engine configuration and copies settings["view options"] into renderConfig, letting attacker-controlled varName text enter generated JavaScript. Exploitation requires an application to render templates with user-defined data or a server-side prototype-pollution path; successful execution runs with the hosting process's privileges.

The record

CVE
CVE-2022-25967
Published
Jan 30, 2023
Updated
Mar 27, 2025
Vendor
Ben Gubler
Product
Eta
Classifications
CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ben Gubler · Etaversion=0 <2.0.0

Published CVSS scores

8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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