Wso2 Identity Server
CVE-2025-12107
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.
What this means for your business
- It affects Wso2 Identity Server. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it from inside the same network, with an administrator login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.6% chance of attack attempts being seen in the next 30 days, ranking above 47% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Wso2 Identity Server, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 8.4 (v3.1)
- Vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness
- CWE-77
- Assigned by
- ed10eef1-636d-4fbe-9993-6890dfa878f8
Dates
- Published
- 2026-02-19
- Last modified
- 2026-09-03
- Sources
- NVD
Affected products
- Wso2 Identity Server5.11.0
As listed in the NVD configuration data. Not a statement about your estate.