CVE intelligence and bounded remediation

CVE-2023-3806 — A vulnerability, which was classified as critical, was found in SourceCodester House Rental and Property Listing System 1.0

Critical CVSS 9.8

A vulnerability, which was classified as critical, was found in SourceCodester House Rental and Property Listing System 1.0. Affected is an unknown function of the file btn_functions.php. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-235074 is the identifier assigned to this vulnerability.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-07-21
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-434

Affected products

  • house_rental_and_property_listing_php_project / house_rental_and_property_listing_php / 1.0

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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