WSO2 Enterprise Integrator: Unrestricted Upload of File with Dangerous Type
CVE-2025-1862 is a high-severity unrestricted upload of file with dangerous type vulnerability in WSO2 Enterprise Integrator from WSO2, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. The record lists version 6.6.0.215 as the first without the flaw, so updating WSO2 Enterprise Integrator to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.54% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update WSO2 Enterprise Integrator to 6.6.0.215 or a later version.
- Update WSO2 Identity Server to 5.10.0.347 or 5.11.0.396 or 6.0.0.232 or 6.1.0.224, whichever matches your release line, or a later version.
- Update WSO2 Open Banking IAM to 2.0.0.391 or a later version.
- Read the advisory on security.docs.wso2.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| WSO2 | WSO2 Enterprise Integrator | 6.6.0 up to, but not including, 6.6.0.215 | 6.6.0.215 |
| WSO2 | WSO2 Identity Server | 5.10.0 up to, but not including, 5.10.0.347; 5.11.0 up to, but not including, 5.11.0.396; 6.0.0 up to, but not including, 6.0.0.232; 6.1.0 up to, but not including, 6.1.0.224 | 5.10.0.347, 5.11.0.396, 6.0.0.232, 6.1.0.224 |
| WSO2 | WSO2 Open Banking IAM | 2.0.0 up to, but not including, 2.0.0.391 | 2.0.0.391 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.10.0 up to, but not including, 5.10.0.340 | 5.10.0.340 |
| WSO2 | Enterprise Integrator | 6.6.0 | Not stated |
| WSO2 | Identity Server | 5.10.0; 5.11.0; 6.0.0; 6.1.0 | Not stated |
| WSO2 | Identity Server As Key Manager | 5.10.0 | Not stated |
| WSO2 | Open Banking Iam | 2.0.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.7 | Medium | CNA |
| CVSS 3.1 | 7.2 | High | NVD |
Official description
An arbitrary file upload vulnerability exists in multiple WSO2 products due to improper validation of user-supplied filenames in the BPEL uploader SOAP service endpoint. A malicious actor with administrative privileges can upload arbitrary files to a user-controlled location on the server. By leveraging this vulnerability, an attacker can upload a specially crafted payload and achieve remote code execution (RCE), potentially compromising the server and its data.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
How developers prevent this class of flaw
- Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
- When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
- Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.
More Unrestricted Upload of File with Dangerous Type vulnerabilities (CWE-434)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in WSO2 Enterprise Integrator
- 9.1 Critical severity
- 7.5 High severity
- 8.8 High severity
- 7.2 High severity
- 7.2 High severity
- 9.1 Critical severity
Recent Unrestricted Upload of File with Dangerous Type vulnerabilities
- 8.6 High severity
- 10.0 Critical severity
- 7.2 High severity
- 10.0 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
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