CVE intelligence and bounded remediation

CVE-2021-28623 — Adobe Premiere Elements version 5.2 (and earlier) is affected by an insecure temporary file creation vulnerability

Medium CVSS 6.2

Adobe Premiere Elements version 5.2 (and earlier) is affected by an insecure temporary file creation vulnerability. An unauthenticated attacker could leverage this vulnerability to call functions against the installer to perform high privileged actions. Exploitation of this issue does not require user interaction.

Severity
Medium
CVSS
6.2 (3.0)
Published
2021-06-28
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-379, CWE-668

Affected products

  • adobe / premiere_elements

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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