CVE-2023-26563Public exploitNetwork attack vector

Unauthenticated file read, upload, and deletion via traversal

Published Jul 12, 2023 · Updated Nov 7, 2024

Path traversal in Syncfusion EJ2 Node File Provider 0102271 allows remote attackers to read, upload, and delete server files. The Download endpoint in filesystem-server.js concatenates contentRootPath with attacker-controlled path and name fields without consistently rejecting traversal sequences. No authentication or user interaction is required, and reachable files are limited only by the web server process's filesystem permissions on Windows or Linux.

CVSS severity9.8
Critical
EPSS probability1.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Syncfusion EJ2 Node File Provider 0102271 allows remote attackers to read, upload, and delete server files. The Download endpoint in filesystem-server.js concatenates contentRootPath with attacker-controlled path and name fields without consistently rejecting traversal sequences. No authentication or user interaction is required, and reachable files are limited only by the web server process's filesystem permissions on Windows or Linux.

The record

CVE
CVE-2023-26563
Published
Jul 12, 2023
Updated
Nov 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1070.004, T1105, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1070.004File Deletion
T1105Ingress Tool Transfer
T1005Data from Local System

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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