CWE-86 - Improper Neutralization of Invalid Characters in Identifiers in Web Pages
- 摘要：Variant
- 结构：Simple
- 状态：Draft
- 发布日期：2006-07-19
- 更新日期：2025-12-11
名称
Improper Neutralization of Invalid Characters in Identifiers in Web Pages
描述
The product does not neutralize or incorrectly neutralizes invalid characters or byte sequences in the middle of tag names, URI schemes, and other identifiers.
Some web browsers may remove these sequences, resulting in output that may have unintended control implications. For example, the product may attempt to remove a "javascript:" URI scheme, but a "java%00script:" URI may bypass this check and still be rendered as active javascript by some browsers, allowing XSS or other attacks.
常见后果
范围：Confidentiality, Integrity, Availability
影响：Read Application Data, Execute Unauthorized Code or Commands