WSO2 Identity Server up to 5.10.0.1 Third-party Velocity Template Engine special elements used in a template engine

Summaryinfo

A vulnerability was found in WSO2 Identity Server. It has been classified as problematic. This issue affects some unknown processing of the component Third-party Velocity Template Engine. The manipulation leads to improper neutralization of special elements used in a template engine. This vulnerability is uniquely identified as CVE-2025-12107. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in WSO2 Identity Server and classified as problematic. This issue affects an unknown code block of the component Third-party Velocity Template Engine. The manipulation with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. Using CWE to declare the problem leads to CWE-1336. The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Due to the use of a vulnerable third-party Velocity template engine, a malicious actor with admin privilege may inject and execute arbitrary template syntax within server-side templates. Successful exploitation of this vulnerability could allow a malicious actor with admin privilege to inject and execute arbitrary template code on the server, potentially leading to remote code execution, data manipulation, or unauthorized access to sensitive information.

The advisory is shared at security.docs.wso2.com. The identification of this vulnerability is CVE-2025-12107 since 10/23/2025. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1221 for this issue.

Upgrading to version 5.11.0.299 eliminates this vulnerability.

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Productinfo

Vendor

• WSO2

Name

• Identity Server

Version

• 2.2.0.0
• 2.2.0.1
• 2.5.0.1
• 2.6.0.1
• 3.0.0.1
• 3.1.0.1
• 3.2.0.0
• 3.2.0.1
• 3.2.0.3
• 5.1.0
• 5.4.0.0
• 5.4.0.2
• 5.4.0.4
• 5.4.1.2
• 5.4.1.3
• 5.5.0
• 5.5.0.0
• 5.5.0.1
• 5.6.0.1
• 5.7.0
• 5.7.0.1
• 5.8.0.5
• 5.9.0.1
• 5.10.0.1

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

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