CVE-2026-28189Network attack vector

Unauthenticated file deletion through path traversal

Published Aug 13, 2026 · Updated Aug 13, 2026

Path traversal in xnau webdesign Participants Database 2.7.8.4 and earlier allows remote attackers to delete server files. Patchstack and the CNA record do not disclose the affected handler, parameter, or pathname operation beyond the CWE-22 mapping. Exploitation requires a privileged user to act on attacker-controlled content; successful exploitation deletes files and can stop the WordPress site from functioning.

CVSS severity7.4
High
EPSS probability0.29%
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 xnau webdesign Participants Database 2.7.8.4 and earlier allows remote attackers to delete server files. Patchstack and the CNA record do not disclose the affected handler, parameter, or pathname operation beyond the CWE-22 mapping. Exploitation requires a privileged user to act on attacker-controlled content; successful exploitation deletes files and can stop the WordPress site from functioning.

The record

CVE
CVE-2026-28189
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Roland Barker, xnau webdesign
Product
Participants Database
Classifications
CWE-22, CAPEC-126, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=2.7.8.4 changes=[{"at":"2.7.8.5","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Roland Barker, xnau webdesign · Participants Databaseversion=n/a <=2.7.8.4 changes=[{"at":"2.7.8.5","status":"unaffected"}]

Published CVSS scores

7.4PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

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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