The XML parsers within multiple WSO2 products accept user-supplied XML data without properly configuring to prevent the resolution of external entities. This omission allows malicious actors to craft XML payloads that exploit the parser's behavior, leading to the inclusion of external resources. By leveraging this vulnerability, an attacker can read confidential files from the file system and access limited HTTP resources reachable by the product. Additionally, the vulnerability can be exploited to perform denial of service attacks by exhausting server resources through recursive entity expansion or fetching large external resources.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 5 products from wso2, from wso2, from wso2 and 2 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2026-04-16T09:16:34.967
2026-06-17T07:24:24.507
Analyzed
ed10eef1-636d-4fbe-9993-6890dfa878f8
CVSSv3.1: 7.5 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | wso2 | api_manager | < 3.1.0.278 | Yes |
| Application | wso2 | api_manager | < 3.2.0.368 | Yes |
| Application | wso2 | api_manager | < 4.0.0.280 | Yes |
| Application | wso2 | api_manager | < 4.1.0.206 | Yes |
| Application | wso2 | api_manager | < 4.2.0.144 | Yes |
| Application | wso2 | api_manager | < 4.3.0.57 | Yes |
| Application | wso2 | identity_server | < 5.10.0.300 | Yes |
| Application | wso2 | identity_server | < 5.11.0.329 | Yes |
| Application | wso2 | identity_server | < 6.0.0.179 | Yes |
| Application | wso2 | identity_server | < 6.1.0.136 | Yes |
| Application | wso2 | identity_server_as_key_manager | < 5.10.0.296 | Yes |
| Application | wso2 | open_banking_am | < 2.0.0.328 | Yes |
| Application | wso2 | open_banking_iam | < 2.0.0.348 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For wso2's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.