CWEweakness

CWE-707 Improper Neutralization

Official page ↗
Abstraction
Pillar
Structure
Simple
Status
Incomplete
Languages
Not Language-Specific
CWE version
5.0

Description

The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being used when received from an upstream component, or before being sent to a downstream component.

Common consequences

• Other: Varies by Context, Unexpected State — If a message is malformed, it may cause the message to be incorrectly interpreted.

Detection methods

• Automated Static Analysis: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Related

Attack pattern · CAPEC (16)

  • CAPEC-250 XML Injection attack pattern
  • CAPEC-276 Inter-component Protocol Manipulation attack pattern
  • CAPEC-277 Data Interchange Protocol Manipulation attack pattern
  • CAPEC-278 Web Services Protocol Manipulation attack pattern
  • CAPEC-279 SOAP Manipulation attack pattern
  • CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters attack pattern
  • CAPEC-43 Exploiting Multiple Input Interpretation Layers attack pattern
  • CAPEC-468 Generic Cross-Browser Cross-Domain Theft attack pattern
  • CAPEC-52 Embedding NULL Bytes attack pattern
  • CAPEC-53 Postfix, Null Terminate, and Backslash attack pattern
  • CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic attack pattern
  • CAPEC-7 Blind SQL Injection attack pattern
  • CAPEC-78 Using Escaped Slashes in Alternate Encoding attack pattern
  • CAPEC-79 Using Slashes in Alternate Encoding attack pattern
  • CAPEC-83 XPath Injection attack pattern
  • CAPEC-84 XQuery Injection attack pattern

Referenced by CAPEC · weakness (16)

  • CAPEC-250 XML Injection attack pattern
  • CAPEC-276 Inter-component Protocol Manipulation attack pattern
  • CAPEC-277 Data Interchange Protocol Manipulation attack pattern
  • CAPEC-278 Web Services Protocol Manipulation attack pattern
  • CAPEC-279 SOAP Manipulation attack pattern
  • CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters attack pattern
  • CAPEC-43 Exploiting Multiple Input Interpretation Layers attack pattern
  • CAPEC-468 Generic Cross-Browser Cross-Domain Theft attack pattern
  • CAPEC-52 Embedding NULL Bytes attack pattern
  • CAPEC-53 Postfix, Null Terminate, and Backslash attack pattern
  • CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic attack pattern
  • CAPEC-7 Blind SQL Injection attack pattern
  • CAPEC-78 Using Escaped Slashes in Alternate Encoding attack pattern
  • CAPEC-79 Using Slashes in Alternate Encoding attack pattern
  • CAPEC-83 XPath Injection attack pattern
  • CAPEC-84 XQuery Injection attack pattern

Referenced by CVE · weakness (264)

  • CVE-2026-76302 As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security… vulnerability
  • CVE-2026-76526 As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security… vulnerability
  • CVE-2026-76284 As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security… vulnerability
  • CVE-2026-76453 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a… vulnerability
  • CVE-2026-76499 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Application Policy Infrastructure Controller… vulnerability
  • CVE-2026-97182 A security vulnerability has been detected in halo-dev Halo up to 2.25.4/2.26.1. vulnerability
  • CVE-2026-20330 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software,… vulnerability
  • CVE-2026-92213 A vulnerability was detected in a2ui-project a2ui up to 0.10.6. vulnerability
  • CVE-2026-76443 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and… vulnerability
  • CVE-2026-20278 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a… vulnerability
  • CVE-2026-76993 A vulnerability was determined in GreyDGL PentestGPT up to 1.0.0. vulnerability
  • CVE-2026-18613 A vulnerability has been found in GL-iNet GL-MT3000 up to 4.4.5. vulnerability
  • CVE-2026-4249 The throttling event handling mechanism in multiple WSO2 products accepts user-supplied JSON payloads without sufficient validation of… vulnerability
  • CVE-2026-11457 A security flaw has been discovered in erzhongxmu JeeWMS up to 141740afb2ba14d441c82a833d0a418d07ca2d69. vulnerability
  • CVE-2026-10661 A vulnerability has been found in ahujasid blender-mcp up to 7636d13bded82eca58eb93c3f4cd8708dfdfbe8b. vulnerability
  • CVE-2026-10210 A vulnerability was found in AstrBotDevs AstrBot 4.23.6. vulnerability
  • CVE-2026-10220 A vulnerability was determined in NousResearch hermes-agent up to 2026.4.30. vulnerability
  • CVE-2026-10221 A vulnerability was identified in NousResearch hermes-agent up to 0.12.0. vulnerability
  • CVE-2026-10222 A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.30. vulnerability
  • CVE-2026-10223 A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. vulnerability
  • CVE-2026-9420 A vulnerability was found in KLiK SocialMediaWebsite 1.0. vulnerability
  • CVE-2026-9422 A vulnerability was identified in KLiK SocialMediaWebsite 1.0. vulnerability
  • CVE-2026-9353 A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.23. vulnerability
  • CVE-2026-9366 A vulnerability was found in NousResearch hermes-agent 2026.4.23. vulnerability
  • CVE-2026-7045 A vulnerability was determined in baomidou dynamic-datasource 2.5.0. vulnerability
  • CVE-2026-6994 A weakness has been identified in Envoy up to 1.33.0. vulnerability
  • CVE-2026-6599 A vulnerability was detected in langflow-ai langflow up to 1.8.3. vulnerability
  • CVE-2026-5561 A vulnerability was determined in Campcodes Complete POS Management and Inventory System up to 4.0.6. vulnerability
  • CVE-2026-5002 A vulnerability has been found in PromtEngineer localGPT up to 4d41c7d1713b16b216d8e062e51a5dd88b20b054. vulnerability
  • CVE-2026-4511 A security vulnerability has been detected in vanna-ai vanna up to 2.0.2. vulnerability
Show all 264 ›

Referenced by CWE · child of (10)

  • CWE-116 Improper Encoding or Escaping of Output weakness
  • CWE-138 Improper Neutralization of Special Elements weakness
  • CWE-1426 Improper Validation of Generative AI Output weakness
  • CWE-170 Improper Null Termination weakness
  • CWE-172 Improper Encoding or Decoding of Data weakness
  • CWE-20 Improper Input Validation weakness
  • CWE-228 Improper Handling of Syntactically Invalid Structure weakness
  • CWE-240 Improper Handling of Inconsistent Structural Elements weakness
  • CWE-463 Deletion of Data Structure Sentinel weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness

Referenced by CWE · has member (1)

  • CWE-1000 Complete Weakness Hierarchy view