CVE-2023-1045Public exploitNetwork attack vector

Arbitrary file deletion via unchecked path concatenation

Published Feb 26, 2023 · Updated Aug 2, 2024

Path traversal in MuYuCMS 2.2 allows remote authenticated users to delete arbitrary server files through the filesdel endpoint. The Accessory::filesdel method concatenates the filedelur parameter into a filesystem path and passes it to unlink without traversal validation. Backend authentication is required; deletion is limited to files writable by the web-server process and can corrupt site data or interrupt service.

CVSS severity8.1
High
EPSS probability0.94%
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 MuYuCMS 2.2 allows remote authenticated users to delete arbitrary server files through the filesdel endpoint. The Accessory::filesdel method concatenates the filedelur parameter into a filesystem path and passes it to unlink without traversal validation. Backend authentication is required; deletion is limited to files writable by the web-server process and can corrupt site data or interrupt service.

The record

CVE
CVE-2023-1045
Published
Feb 26, 2023
Updated
Aug 2, 2024
Vendor
MuYuCMS
Product
MuYuCMS
Classifications
CWE-22, CWE-23, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MuYuCMS · MuYuCMSversion=2.2

Published CVSS scores

3.8VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
8.1NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
4.7VulDBAV:N/AC:L/Au:M/C:N/I:P/A:P

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23Relative Path Traversal
T1485Data Destruction

Public exploit references

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