CVE-2023-27700Public exploitNetwork attack vector

Authenticated arbitrary file deletion via path traversal

Published Mar 28, 2023 · Updated Feb 18, 2025

Path traversal in MuYuCMS 2.2 allows remote authenticated users to delete arbitrary server files through picdel.html. The handler accepts a picdelur form value containing ../ traversal segments and resolves it outside the intended upload directory for deletion. Administrative-backend access is required, and successful exploitation removes files writable by the web process, potentially interrupting the hosted service.

CVSS severity8.1
High
EPSS probability0.81%
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 MuYuCMS 2.2 allows remote authenticated users to delete arbitrary server files through picdel.html. The handler accepts a picdelur form value containing ../ traversal segments and resolves it outside the intended upload directory for deletion. Administrative-backend access is required, and successful exploitation removes files writable by the web process, potentially interrupting the hosted service.

The record

CVE
CVE-2023-27700
Published
Mar 28, 2023
Updated
Feb 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('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

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Your stack

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