CVE-2022-28527Public exploitNetwork attack vector

Authenticated arbitrary folder deletion via incomplete path filtering

Published Apr 26, 2022 · Updated Aug 3, 2024

Path traversal in dhcms 20170919 allows remote authenticated users to delete arbitrary server folders through the backup deletion endpoint. Util.php rejects only the literal names . and .. but accepts traversal sequences such as ../ in the data parameter before recursively deleting the resolved directory. Backend authentication is required; successful exploitation can remove folders reachable by the web-server account, causing data loss and service interruption.

CVSS severity8.1
High
EPSS probability1.08%
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 dhcms 20170919 allows remote authenticated users to delete arbitrary server folders through the backup deletion endpoint. Util.php rejects only the literal names . and .. but accepts traversal sequences such as ../ in the data parameter before recursively deleting the resolved directory. Backend authentication is required; successful exploitation can remove folders reachable by the web-server account, causing data loss and service interruption.

The record

CVE
CVE-2022-28527
Published
Apr 26, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:P
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.

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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
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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