CVE-2023-26564Public exploitNetwork attack vector

Arbitrary file read and write via path traversal

Published Jul 12, 2023 · Updated Nov 7, 2024

Path traversal in Syncfusion EJ2 ASPCore File Provider 3ac357f allows remote attackers to read or write server-accessible files. PhysicalFileProvider.cs combines untrusted file-operation paths with the configured content root without verifying that the resolved path remains beneath it. No authentication is required; crafted traversal paths can list or download readable files and upload files wherever the web server account can write.

CVSS severity9.8
Critical
EPSS probability1.72%
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 ASPCore File Provider 3ac357f allows remote attackers to read or write server-accessible files. PhysicalFileProvider.cs combines untrusted file-operation paths with the configured content root without verifying that the resolved path remains beneath it. No authentication is required; crafted traversal paths can list or download readable files and upload files wherever the web server account can write.

The record

CVE
CVE-2023-26564
Published
Jul 12, 2023
Updated
Nov 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
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 National Vulnerability DatabaseCVSS: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.

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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')
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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