CVE-2023-6836 WSO2 products vulnerable to XML External Entity attack
Attackers can exploit XML External Entity vulnerabilities in WSO2 products to access sensitive information via malicious XML input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-6836?
CVE-2023-6836 is a medium-severity vulnerability in Wso2 Api Manager, published on 15 Dec 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-611
Which versions are affected by CVE-2023-6836?
12 open source packages ship an affected version, including org.wso2.am:wso2am, org.wso2.carbon.analytics-common:org.wso2.carbon.event.input.adapter.core and org.wso2.carbon.commons:org.wso2.carbon.ntask.core. It affects 7 products.
| Package | Affected | Fixed in |
|---|---|---|
org.wso2.am:wso2am Maven | All versions | 4.0.0-beta |
org.wso2.am:wso2am Maven | All versions | 4.0.0-beta |
org.wso2.carbon.analytics-common:org.wso2.carbon.event.input.adapter.core Maven | All versions | 5.2.23 |
org.wso2.carbon.analytics-common:org.wso2.carbon.event.input.adapter.core Maven | All versions | 5.2.23 |
org.wso2.carbon.commons:org.wso2.carbon.ntask.core Maven | All versions | 4.7.24 |
org.wso2.carbon.commons:org.wso2.carbon.ntask.core Maven | All versions | 4.7.24 |
6 more packages
org.wso2.carbon.event-processing:org.wso2.carbon.event.processor.core Maven | All versions | 2.2.12 |
org.wso2.carbon.event-processing:org.wso2.carbon.event.processor.core Maven | All versions | 2.2.12 |
org.wso2.carbon.governance:org.wso2.carbon.governance.common Maven | All versions | 4.8.13 |
org.wso2.carbon.governance:org.wso2.carbon.governance.common Maven | All versions | 4.8.13 |
org.wso2.carbon.registry:org.wso2.carbon.registry.extensions Maven | All versions | 4.7.31 |
org.wso2.carbon.registry:org.wso2.carbon.registry.extensions Maven | All versions | 4.7.31 |
Products include Wso2 Api Manager, Wso2 Api Manager Analytics, Wso2 Api Microgateway, Wso2 Enterprise Integrator, Wso2 Identity Server, Wso2 Identity Server as Key Manager and 1 more.
How do I fix CVE-2023-6836?
Upgrade org.wso2.am:wso2am to 4.0.0-beta or later.
Is CVE-2023-6836 being exploited?
There is no known exploitation of CVE-2023-6836 in the wild and no public exploit code.
Other vulnerabilities in Wso2 Api Manager
- CVE-2022-29464 WSO2 Multiple Products Unrestrictive Upload of File
- CVE-2024-6914 Incorrect Authorization in Multiple WSO2 Products via Account Recovery SOAP Admin Service Leading to Account Takeover
- CVE-2020-13226 WSO2 API Manager vulnerable to SSRF
- CVE-2025-2905 An XML External Entity (XXE) vulnerability in Multiple WSO2 Products
- CVE-2021-42646 XML external entity in n/a
Sources
Also known as GHSA-cr8h-fr86-8vfv.