CVE intelligence and bounded remediation

CVE-2018-8947 — Laravel Log Viewer Project Laravel Log Viewer security vulnerability

High CVSS 7.5

rap2hpoutre Laravel Log Viewer before v0.13.0 relies on Base64 encoding for l, dl, and del requests, which makes it easier for remote attackers to bypass intended access restrictions, as demonstrated by reading arbitrary files via a dl request.

Severity
High
CVSS
7.5 (3.0)
Published
2018-03-25
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-312

Affected products

  • laravel_log_viewer_project / laravel_log_viewer

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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