LiveActive security incident?Get immediate response
CVE Record

CVE-2018-12304: Cross-site scripting in Application Manager in Seagate NAS OS version 4.3.15.1 allows attackers to execute...

Cross-site scripting in Application Manager in Seagate NAS OS version 4.3.15.1 allows attackers to execute JavaScript via multiple application metadata fields: Short Description, Publisher Name, Publisher Contact, or Website URL.

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

Security readout for executives and security teams

Plain-English summary

CVE-2018-12304 is a cross-site scripting issue in Seagate NAS OS 4.3.15.1 Application Manager. Malicious application metadata could cause JavaScript to run in a user's browser when viewed. Business risk depends on who can add or influence that metadata and who can access the management interface.

Executive priority

Treat this as a targeted administrative-interface risk, not a proven mass-exploitation emergency. Prioritize if affected NAS devices store sensitive data, are remotely administered, or allow untrusted users to manage applications.

Technical view

The CVE states that Application Manager in Seagate NAS OS 4.3.15.1 fails to safely handle multiple application metadata fields: Short Description, Publisher Name, Publisher Contact, and Website URL. The result is JavaScript execution in the browser context of users viewing those fields. CVSS, CWE, patch status, and broader affected-version data are not provided.

Likely exposure

Likely exposure is limited to environments running Seagate NAS OS 4.3.15.1 where Application Manager is accessible. The source bundle does not prove other versions, products, or models are affected, and it does not identify internet exposure prevalence.

Exploitation context

The CVE is not listed as KEV in the provided bundle. The cited research blog is the only public reference, but the bundle does not provide evidence of active exploitation, exploit availability, or confirmed ransomware use.

Researcher notes

Key evidence gaps are significant: no CVSS vector, no CWE mapping, no vendor patch detail, and no complete affected-product list in the bundle. Analysis should stay anchored to Seagate NAS OS 4.3.15.1 and the named Application Manager metadata fields.

Mitigation direction

  • Identify Seagate NAS OS 4.3.15.1 systems and prioritize Application Manager review.
  • Check Seagate or device-vendor guidance for firmware updates or supported mitigations.
  • Restrict NAS management and Application Manager access to trusted networks and users.
  • Remove or review untrusted application metadata entries where operationally feasible.
  • Monitor administrative sessions for unexpected browser script behavior or suspicious configuration changes.

Validation and detection

  • Confirm whether any managed NAS devices run Seagate NAS OS 4.3.15.1.
  • Review Application Manager access paths and ensure they are not publicly reachable.
  • Inspect application metadata fields for unexpected markup, script-like content, or untrusted values.
  • In a lab, verify metadata is encoded rather than executed by the browser.
  • Document any vendor firmware, advisory, or support status found during review.
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.

cve · low confidence lookup

CVE-2018-12304 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.