CVE-2023-26045Network attack vector

Remote code execution via export type overwrite

Published Jul 24, 2023 · Updated Feb 13, 2025

Path traversal in NodeBB 2.5.0 through 2.8.6 allows remote attackers to execute JavaScript files already present on the server. The Socket.IO user profile handler spread attacker-controlled data over the selected export type, while generateExport accepted the overwritten type without an allowlist. A crafted unauthenticated network request can traverse the export path and run a local JavaScript file with the privileges of the NodeBB process.

CVSS severity10.0
Critical
EPSS probability1.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in NodeBB 2.5.0 through 2.8.6 allows remote attackers to execute JavaScript files already present on the server. The Socket.IO user profile handler spread attacker-controlled data over the selected export type, while generateExport accepted the overwritten type without an allowlist. A crafted unauthenticated network request can traverse the export path and run a local JavaScript file with the privileges of the NodeBB process.

The record

CVE
CVE-2023-26045
Published
Jul 24, 2023
Updated
Feb 13, 2025
Vendor
NodeBB
Product
NodeBB
Classifications
CWE-22, CWE-250, T1190, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 2.5.0, < 2.8.7
  2. Affected versionversion=2.5.0 <2.8.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NodeBB · NodeBBversion=>= 2.5.0, < 2.8.7; version=2.5.0 <2.8.7

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-250Execution with Unnecessary Privileges
T1190Exploit Public-Facing Application
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo