CVE-2019-19032 in XMLBlueprint
Summary
by MITRE
XMLBlueprint through 16.191112 is affected by XML External Entity Injection. The impact is: Arbitrary File Read when an XML File is validated. The component is: XML Validate function. The attack vector is: Specially crafted XML payload.
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Analysis
by VulDB Data Team • 10/26/2025
XMLBlueprint version 16.191112 contains a critical vulnerability classified as XML External Entity Injection (XXE) affecting its XML Validate function. This vulnerability stems from the application's improper handling of external entity references during XML parsing operations, allowing malicious actors to exploit the validation process and gain unauthorized access to arbitrary files on the system. The flaw exists within the XML parsing engine that fails to properly sanitize external entity declarations, creating a pathway for attackers to manipulate the validation workflow and extract sensitive data from the local filesystem.
The technical implementation of this vulnerability occurs when XMLBlueprint processes specially crafted XML payloads containing external entity references that point to local files or network resources. During validation, the system attempts to resolve these external entities, which can result in unauthorized file access and information disclosure. This behavior aligns with CWE-611, which specifically addresses improper restriction of XML external entity reference, and represents a classic XXE attack vector that has been documented across numerous applications and platforms. The vulnerability is particularly dangerous because it operates within the validation function, which is typically trusted and used for legitimate purposes, making the attack more subtle and harder to detect.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable attackers to access sensitive files, configuration data, and potentially system resources that should remain protected. An attacker could leverage this weakness to read system files, application configuration, database connection strings, or other confidential information that might be stored in accessible locations. The attack vector requires only a specially crafted XML payload that includes external entity declarations pointing to target files, making it relatively easy to exploit. This vulnerability can be classified under ATT&CK technique T1213.002, which covers data from information repositories, as it enables unauthorized access to stored data through manipulation of XML parsing behavior.
Mitigation strategies for this vulnerability should include implementing proper XML parser configuration to disable external entity resolution and DTD processing within the XMLBlueprint application. Organizations should update to the latest version of XMLBlueprint where this vulnerability has been patched, as the developers have addressed the XXE handling in subsequent releases. Additional protective measures include implementing strict input validation, employing XML parsers configured with secure defaults, and establishing network segmentation to limit access to sensitive resources. Security monitoring should be enhanced to detect unusual XML processing activities, and regular vulnerability assessments should be conducted to identify similar weaknesses in other XML processing components within the application stack.