CVE intelligence and bounded remediation

CVE-2026-9506 — This vulnerability exists in Bagisto due to improper validation of user-supplied input in the ImageCacheController component

High CVSS 8.7

This vulnerability exists in Bagisto due to improper validation of user-supplied input in the ImageCacheController component. An unauthenticated remote attacker could exploit this vulnerability by sending crafted path traversal sequences through the filename parameter to access arbitrary files outside the intended directory on the targeted system. Successful exploitation of this vulnerability could allow an attacker to read arbitrary sensitive files on the targeted system.

Severity
High
CVSS
8.7 (4.0)
Published
2026-06-08
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

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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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