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CWE-153 (替代符号转义处理不恰当) — Vulnerability Class 4

4 vulnerabilities classified as CWE-153 (替代符号转义处理不恰当). AI Chinese analysis included.

CWE-153 represents a critical input validation weakness where software fails to properly sanitize special characters that hold semantic meaning for downstream components. This flaw typically arises when an application accepts user-controlled data and passes it directly to interpreters, such as command shells, SQL engines, or template engines, without adequate escaping or encoding. Attackers exploit this by injecting malicious substitution characters, enabling injection attacks like command injection or cross-site scripting that compromise system integrity or steal data. To mitigate this risk, developers must implement strict input validation and employ context-aware output encoding techniques. By ensuring that all special characters are correctly neutralized before transmission, developers prevent these characters from being interpreted as executable commands or structural elements, thereby securing the interaction between upstream inputs and downstream processing environments.

MITRE CWE Description
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as substitution characters when they are sent to a downstream component.
Common Consequences (1)
IntegrityUnexpected State
Mitigations (4)
Developers should anticipate that substitution characters will be injected/removed/manipulated in the input vectors of their product. Use an appropriate combination of denylists and allowlists to ensure only valid, expected and appropriate input is processed by the system.
ImplementationAssume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range…
ImplementationWhile it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or whit…
ImplementationInputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
CVE IDTitleCVSSSeverityPublished
CVE-2025-53006 Dataease PostgreSQL & Redshift Data Source JDBC Connection Parameters Bypass Vulnerability — dataease 9.1AICriticalAI2025-07-02
CVE-2025-53005 Dataease PostgreSQL Data Source JDBC Connection Parameters Bypass Vulnerability — dataease 8.8AIHighAI2025-07-01
CVE-2025-53004 Dataease Redshift Data Source JDBC Connection Parameters Bypass Vulnerability — dataease 8.8AIHighAI2025-06-30
CVE-2025-49003 Dataease H2 JDBC Connection Remote Code Execution — dataease 9.8AICriticalAI2025-06-26

Vulnerabilities classified as CWE-153 (替代符号转义处理不恰当) represent 4 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.