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CVE Record

CVE-2017-9428: A directory traversal vulnerability exists in core\admin\ajax\developer\extensions\file-browser.php in BigT...

A directory traversal vulnerability exists in core\admin\ajax\developer\extensions\file-browser.php in BigTree CMS through 4.2.18 on Windows, allowing attackers to read arbitrary files via ..\ sequences in the directory parameter.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

BigTree CMS through 4.2.18 on Windows has a directory traversal issue that can let an attacker read files outside the intended file browser area. The main business risk is exposure of configuration files, credentials, or sensitive local data if a vulnerable endpoint is reachable.

Executive priority

Treat this as a priority for any Windows BigTree CMS deployment exposed to untrusted users. Arbitrary file read can become a credential exposure incident, but urgency depends on endpoint reachability and authentication controls.

Technical view

The vulnerable component is core\admin\ajax\developer\extensions\file-browser.php. The CVE states that Windows path traversal sequences in the directory parameter can allow arbitrary file reads. The sources do not provide CVSS, authentication requirements, a confirmed fixed release, or tested exploitability details beyond the reported issue.

Likely exposure

Likely exposure is limited to Windows-hosted BigTree CMS deployments through 4.2.18 where the admin/developer file-browser endpoint is present and reachable. The provided sources do not confirm impact for non-Windows systems or whether authentication is required.

Exploitation context

CISA KEV is false in the provided bundle, and no cited source confirms active exploitation. Public issue details exist, so defenders should assume the bug is known, but the available evidence does not establish real-world exploitation.

Researcher notes

Evidence is sparse: the CVE description and GitHub issue identify the vulnerable file, Windows traversal vector, and version ceiling. Missing details include privilege requirements, exact affected configurations, CVSS scoring, and a named fixed release.

Mitigation direction

  • Identify any BigTree CMS installations through version 4.2.18 on Windows.
  • Review BigTree CMS vendor guidance for fixed versions or supported remediation.
  • Restrict public access to admin and developer endpoints.
  • Remove or disable developer file-browser functionality if not operationally required.
  • Harden file permissions around configuration, credential, and system files.

Validation and detection

  • Inventory CMS version, host operating system, and exposed BigTree admin paths.
  • Confirm whether core admin developer file-browser functionality is deployed.
  • Review web logs for suspicious directory parameter traversal patterns.
  • Check whether sensitive files are readable by the web server account.
  • Document whether vendor guidance identifies a patched version.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2017-9428 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.