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CWE WEAKNESSES  /  CWE-346

CWE-346

Origin Validation Error

Class

What it is

The product does not properly verify that the source of data or communication is valid.

Impact

Access Control, OtherGain Privileges or Assume Identity, Varies by Context

Real-world CVE examples

  • CVE-2000-1218 — DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning
  • CVE-2018-6074 — Browser does not set Mark-of-the-Web (MotW) for a downloaded .EXE file if the name is close to the maximum path length, preventing recording of a zone identifie
  • CVE-2025-0411 — Zip file extraction program does not propagate Mark-of-the-Web (MotW) metadata to files that are extracted from an Internet-downloaded Zip file
  • CVE-2025-46652 — Zip file extraction program does not propagate Mark-of-the-Web (MotW) metadata to files that are extracted from an Internet-downloaded Zip file
  • CVE-2005-0877 — DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning
  • CVE-2001-1452 — DNS server caches glue records received from non-delegated name servers
  • CVE-2005-2188 — user ID obtained from untrusted source (URL)
  • CVE-2003-0174 — LDAP service does not verify if a particular attribute was set by the LDAP server
  • CVE-1999-1549 — product does not sufficiently distinguish external HTML from internal, potentially dangerous HTML, allowing bypass using special strings in the page title. Over
  • CVE-2003-0981 — product records the reverse DNS name of a visitor in the logs, allowing spoofing and resultant XSS.

Related weaknesses

Test & detect

Browse all common weaknesses, check related exploited CVEs, or map to ATT&CK techniques.

Source: MITRE CWE. View on cwe.mitre.org →

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