CVE intelligence and bounded remediation

CVE-2020-26295 — OpenMage is a community-driven alternative to Magento CE

High CVSS 8.7

OpenMage is a community-driven alternative to Magento CE. In OpenMage before versions 19.4.10 and 20.0.5, an administrator with permission to import/export data and to edit cms pages was able to inject an executable file on the server via layout xml. The latest OpenMage Versions up from 19.4.9 and 20.0.5 have this Issue solved

Severity
High
CVSS
8.7 (3.1)
Published
2021-01-21
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22, CWE-434

Affected products

  • openmage / openmage

Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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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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