LiveActive security incident?Get immediate response
CVE Record

CVE-2018-14911: A file upload vulnerability exists in ukcms v1.1.7 and earlier.

A file upload vulnerability exists in ukcms v1.1.7 and earlier. The vulnerability is due to the system not strictly filtering the file upload type. An attacker can exploit the vulnerability to upload a script Trojan to admin.php/admin/configset/index/group/upload.html to gain server control by composing a request for a .txt upload and then changing it to a .php upload. The attacker must have admin access to change the upload_file_ext (aka "Allow upload file suffix") setting, and must use "php,php" in this setting to bypass the "php" restriction.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-14911 affects ukcms v1.1.7 and earlier. The issue lets someone with administrator access weaken upload restrictions so a server-executable file can be accepted, potentially giving control of the web server. The public record does not provide a CVSS score, confirmed exploitation, or a vendor-fixed version.

Executive priority

Prioritize if ukcms is internet-facing or admin credentials may be exposed. The business risk is potential server takeover, but urgency is tempered by the admin-access prerequisite and missing evidence of active exploitation.

Technical view

The vulnerability is insufficient file-type filtering in ukcms upload configuration. An authenticated administrator can modify allowed upload suffix behavior and cause an executable script upload to be accepted. Source data names ukcms v1.1.7 and earlier, but provides no CPEs, CWE, CVSS vector, patch advisory, or mitigation detail.

Likely exposure

Exposure is likely limited to organizations running ukcms v1.1.7 or earlier, especially internet-facing admin panels. Practical abuse requires administrator access or compromise of an admin account, so identity controls materially affect risk.

Exploitation context

The CVE source describes a path to server control after abusing upload settings, but KEV is false and the bundle cites no evidence of active exploitation. Treat exploit status as unconfirmed.

Researcher notes

The public record is sparse. It identifies the affected product and version range and describes insufficient upload filtering, but lacks CVSS, CWE, CPE, patch status, and independent exploitation evidence. Avoid assuming all ukcms forks or later versions are affected without confirmation.

Mitigation direction

  • Identify any ukcms deployments and their exact versions.
  • Restrict access to ukcms administrative interfaces.
  • Review admin accounts for least privilege and strong authentication.
  • Check vendor or project guidance for fixed versions or safe configuration.
  • Remove executable handling from upload directories where feasible.

Validation and detection

  • Inventory public and internal sites for ukcms usage.
  • Confirm whether any deployment is v1.1.7 or earlier.
  • Review upload suffix settings for unsafe executable extensions.
  • Inspect recent admin activity for unexpected upload configuration changes.
  • Check web roots and upload directories for unexpected server-side scripts.
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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-14911 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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.