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CVE Record

CVE-2018-19586: Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be...

Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be triggered during file uploads because core/webapi/upload/FileUploadData.java mishandles a StringUtil.java call. This vulnerability enables regular users to write arbitrary files on the underlying system with privileges of the user running the application. Especially, an attacker may leverage the vulnerability to write an executable JSP file in an exposed web directory to execute commands on the underlying system.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-19586 lets an authenticated Silverpeas user abuse file upload handling to write files outside the intended upload location. The stated impact includes writing executable JSP files in exposed web directories, which could lead to command execution under the application user account.

Executive priority

Treat this as high priority where affected Silverpeas instances are user-accessible or internet-facing. The issue starts with authenticated access but can cross into server-side code execution if an attacker can place executable files in exposed paths.

Technical view

Silverpeas 5.15 through 6.0.2 mishandles path processing during uploads in core/webapi/upload/FileUploadData.java via a StringUtil.java call. The vulnerability is authenticated directory traversal with arbitrary file write using the privileges of the Silverpeas application process.

Likely exposure

Exposure is limited to organizations running Silverpeas 5.15 through 6.0.2 where regular authenticated users can access affected file upload functionality. Internet-facing instances or environments with broad user registration increase practical risk.

Exploitation context

The CVE description states an authenticated user can write arbitrary files and may place executable JSP content in an exposed web directory. The source bundle does not show KEV listing or other evidence of active exploitation.

Researcher notes

The public record names vulnerable versions and a source location, but the bundle does not include CVSS, CWE, confirmed fixed version, or active exploitation evidence. Validate exposure through versioning, upload authorization, filesystem permissions, and webroot integrity without using destructive testing.

Mitigation direction

  • Inventory Silverpeas deployments and identify versions 5.15 through 6.0.2.
  • Check Silverpeas vendor guidance for a fixed release or supported remediation.
  • Limit file upload capability to trusted users until remediation is complete.
  • Run Silverpeas with the least filesystem privileges required.
  • Review exposed web directories for unauthorized JSP or unexpected uploaded files.

Validation and detection

  • Confirm the running Silverpeas version on each instance.
  • Map which authenticated roles can access file upload features.
  • Review application logs for unusual upload paths or unexpected file names.
  • Inspect web-accessible directories for unauthorized executable files.
  • Verify the application account cannot write outside required directories.
Prepared
Confidence
medium
Sources
4

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-2018-19586 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
3Source 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.