CVE intelligence and bounded remediation

CVE-2025-52562 — Convoy is a KVM server management panel for hosting businesses

Critical CVSS 10

Convoy is a KVM server management panel for hosting businesses. In versions 3.9.0-rc3 to before 4.4.1, there is a directory traversal vulnerability in the LocaleController component of Performave Convoy. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted HTTP request with malicious locale and namespace parameters. This allows the attacker to include and execute arbitrary PHP files on the server. This issue has been patched in version 4.4.1. A temporary workaround involves implementing strict Web Application Firewall (WAF) rules to incoming requests targeting the vulnerable endpoints.

Severity
Critical
CVSS
10 (3.1)
Published
2025-06-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22, CWE-98

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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