← Vulnerability feed

Vulnerability record · CVE-2023-6836 · published 15 December 2023

CVE-2023-6836: Wso2 api manager xml external entity (xxe) vulnerability

Wso2 · Api Manager

Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely used feature of XML parsers to access sensitive information.

7.5 CVSS 3.1 High EPSS 0.48% · top 60.9% CWE-611 · XML external entity (XXE)
7.5CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely used feature of XML parsers to access sensitive information.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-0716/ Vendor Advisory
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-0716/ Vendor Advisory

Track CVE-2023-6836 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-5430Wso2 api control plane improper verification of cryptographic signature vulnerabilityThe JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker t…KEVEPSS 0.59%9.8CVE-2022-29464WSO2 products path traversal file upload leads to RCEMultiple WSO2 products accept unrestricted file uploads through a /fileupload endpoint, and a Content-Disposition directory traversal sequence lets a…KEVEPSS 100%analysed10.0CVE-2026-2053Wso2 api manager server-side request forgery (ssrf) vulnerabilityThe WSO2 API Manager's message flow component, when processing WS-Addressing headers, does not sufficiently validate or restrict user-controlled inpu…EPSS 0.39%9.8CVE-2026-1728Wso2 api control plane improper privilege management vulnerabilityTokens issued to a low-privileged user are not sufficiently restricted, allowing them to be used to access product-level Admin REST APIs. Exploitatio…EPSS 0.48%9.8CVE-2025-9312Wso2 api control plane missing authentication for critical function vulnerabilityA missing authentication enforcement vulnerability exists in the mutual TLS (mTLS) implementation used by System REST APIs and SOAP services in multi…EPSS 0.24%9.8CVE-2025-9152Wso2 api control plane missing authentication for critical function vulnerabilityAn improper privilege management vulnerability exists in WSO2 API Manager due to missing authentication and authorization checks in the keymanager-op…EPSS 0.71%9.8CVE-2025-10611Wso2 api control plane incorrect authorization vulnerabilityDue to an insufficient access control implementation in multiple WSO2 Products, authentication and authorization checks for certain REST APIs can be …EPSS 0.82%9.8CVE-2024-6914Wso2 api manager incorrect authorization vulnerabilityAn incorrect authorization vulnerability exists in multiple WSO2 products due to a business logic flaw in the account recovery-related SOAP admin ser…EPSS 0.72%

Source: NIST National Vulnerability Database (record CVE-2023-6836), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.