Server-Side Template Injection via Velocity Template Engine in Multiple WSO2 Products Allows Remote Code Execution (CVE-2025-12107) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2025-12107

Server-Side Template Injection via Velocity Template Engine in Multiple WSO2 Products Allows Remote Code Execution

Answer in brief

CVE-2025-12107 records a Unknown severity vulnerability in Server-Side Template Injection via Velocity Template Engine in Multiple WSO2 Products Allows Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps WSO2/Identity Server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Feb 19, 2026Updated Sep 3, 2026Source checked Sep 3, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WSO2/Identity Server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
WSO2/Identity Servergeneric	>=5.11.0 <5.11.0.299 \|\| >=6.0.0 <6.0.0.140 \|\| >=6.1.0 <6.1.0.122	5.11.0.299, 6.0.0.140, 6.1.0.122

Recommended response

Check inventory. Check lockfiles and deployed manifests for WSO2/Identity Server.
Review the reported fix. Update WSO2/Identity Server to 5.11.0.299 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Feb 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 3, 2026

Sources and claim methodology

Source referencesecurity.docs.wso2.com

Upstream source description

The Velocity template engine, utilized by the affected product, accepts and processes template syntax without sufficient sanitization or validation of user-controlled input. This allows an authenticated administrator to inject arbitrary template syntax. Successful exploitation enables an attacker with administrative privileges to execute arbitrary template code on the server. This can lead to significant security consequences, including remote code execution, manipulation of data, and unauthorized access to sensitive information.

Quoted source text, attributed separately from HOL analysis.