CWE-643: Improper Neutralization of Data within XPath Expressions ('XPath Injection')

low-risk

The product uses external input to dynamically construct an XPath expression used to retrieve data from an XML database, but it does not neutralize or incorrectly neutralizes that input. This allows an attacker to control the structure of the query.

Abstraction: Base

Common Consequences

Access Control Bypass Protection Mechanism
Confidentiality Read Application Data

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.)

Real-World Examples (10)

CVE CVSS EPSS KEV
CVE-2023-24922 6.5 6.5%
CVE-2023-36433 6.5 1.9%
CVE-2023-36429 6.5 1.3%
CVE-2020-25162 7.5 0.7%
CVE-2024-39565 8.8 0.6%
CVE-2022-43840 4.3 0.2%
CVE-2022-43840 4.3 0.2%
CVE-2024-2648 4.3 0.1%
CVE-2024-2645 4.3 0.1%
CVE-2025-11844 5.4 0.0%
0
/ 100
low-risk
Active Threat 0/50 · Minimal
Exploit Availability 0/50 · Minimal