CVE-2025-4828Network attack vector

Unauthenticated file deletion via unvalidated path

Published Jul 8, 2025 · Updated Apr 8, 2026

Path traversal in Schiocco Support Board 3.8.0 and earlier allows remote attackers to delete arbitrary server files. The sb_file_delete function accepts an insufficiently validated file path and deletes the referenced file outside the intended directory. Unauthenticated reachability requires chaining CVE-2025-4855; deleting wp-config.php can enable site takeover and remote code execution.

CVSS severity9.8
Critical
EPSS probability0.83%
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 Schiocco Support Board 3.8.0 and earlier allows remote attackers to delete arbitrary server files. The sb_file_delete function accepts an insufficiently validated file path and deletes the referenced file outside the intended directory. Unauthenticated reachability requires chaining CVE-2025-4855; deleting wp-config.php can enable site takeover and remote code execution.

The record

CVE
CVE-2025-4828
Published
Jul 8, 2025
Updated
Apr 8, 2026
Vendor
Schiocco
Product
Support Board
Classifications
CWE-22, T1190, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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=0 <=3.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Schiocco · Support Boardversion=0 <=3.8.0

Published CVSS scores

9.8WordfenceCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application
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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