CVE intelligence and bounded remediation

CVE-2020-9364 — An issue was discovered in helpers/mailer.php in the Creative Contact Form extension 4.6.2 before 2019-12-03 for Joomla!

Medium CVSS 5.3

An issue was discovered in helpers/mailer.php in the Creative Contact Form extension 4.6.2 before 2019-12-03 for Joomla!. A directory traversal vulnerability resides in the filename field for uploaded attachments via the creativecontactform_upload parameter. An attacker could exploit this vulnerability with the "Send me a copy" option to receive any files of the filesystem via email.

Severity
Medium
CVSS
5.3 (3.1)
Published
2020-03-04
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • creative-solutions / creative_contact_form / 4.6.2

Matched remediation archetype

Path traversal, unsafe upload, and file handling

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

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

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.