CVE intelligence and bounded remediation

CVE-2012-5358 — Ektron Ektron Content Management System security vulnerability

Critical CVSS 9.8

The XSLTCompiledTransform function in Ektron Content Management System (CMS) before 8.02 SP5 configures the XSL with enableDocumentFunction set to true, which allows remote attackers to read arbitrary files and consequently bypass authentication, modify viewstate, cause a denial of service, or possibly have unspecified other impact via crafted XSL data.

Severity
Critical
CVSS
9.8 (3.0)
Published
2017-10-30
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-19

Affected products

  • ektron / ektron_content_management_system

Matched remediation archetype

Path traversal, unsafe upload, and file handling

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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