# CVE-2025-13647: WSO2 Identity Server content-type validation bypass

Source: https://junglewise.ai/threats/cve-2025-13647-the-affected-component-fails-to-enforce-expected-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-02. Updated: 2026-11-02  
License: CC BY 4.0 with a link back

CVE-2025-13647 · Severity: medium · CVSS 5.8 · Published 2026-11-02

WSO2 Identity Server and related products fail to properly validate the content-type header in certain requests, allowing an attacker to craft a malicious request that exposes file paths to certificate files. This information disclosure could help attackers plan further attacks or understand the system's security infrastructure.

Technologies: [Wso2 Identity Server](https://junglewise.ai/threats/technologies/identity-server), [Wso2 Identity Server as Key Manager](https://junglewise.ai/threats/technologies/identity-server-as-key-manager), [Wso2 Open Banking IAM](https://junglewise.ai/threats/technologies/open-banking-iam). Vendors: [Wso2](https://junglewise.ai/threats/vendors/wso2).

## Quick answers

**Is CVE-2025-13647 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-13647 being exploited in the wild.

**How severe is CVE-2025-13647?** Medium severity, with a CVSS score of 5.8, published 2 November 2026.

**Which products and versions are affected?** Wso2 Identity Server 7.2.0, 7.1.0, 7.0.0, 6.1.0, 6.0.0, 5.11.0, 5.10.0; Wso2 Identity Server as Key Manager 5.10.0; Wso2 Open Banking IAM 2.0.0.

**Is there a fix for CVE-2025-13647?** Yes: fixed in WSO2 Identity Server 7.2.0 (update 3), 7.1.0 (update 41), 7.0.0 (update 133), 6.1.0 (update 255), 6.0.0 (update 255), 5.11.0 (update 428), 5.10.0 (update 381); WSO2 Identity Server as Key Manager 5.10.0 (update 372); WSO2 Open Banking IAM 2.0.0 (update 421). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-13647 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2025-13647?** Check whether you run Wso2 Identity Server, Wso2 Identity Server as Key Manager or Wso2 Open Banking IAM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in WSO2 Identity Server 7.2.0 (update 3), 7.1.0 (update 41), 7.0.0 (update 133), 6.1.0 (update 255), 6.0.0 (update 255), 5.11.0 (update 428), 5.10.0 (update 381); WSO2 Identity Server as Key Manager 5.10.0 (update 372); WSO2 Open Banking IAM 2.0.0 (update 421)

## Technical details

The affected products fail to enforce validation of the content-type header when processing requests, allowing an unauthenticated attacker to submit a crafted request that bypasses expected constraints. Exploitation results in exposure of certificate file paths, enabling reconnaissance for subsequent attacks. A fix is available via the public GitHub repository and WSO2 Updates.

## Affected products

- WSO2 Identity Server 7.2.0, 7.1.0, 7.0.0, 6.1.0, 6.0.0, 5.11.0, 5.10.0
- WSO2 Identity Server as Key Manager 5.10.0
- WSO2 Open Banking IAM 2.0.0

## Timeline

- 2026-05-03: disclosed

## References

- [https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4751/](https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4751/)

## Related threats

- [WSO2 Identity Server privilege escalation via client credentials grant type](https://junglewise.ai/threats/cve-2025-11229-the-system-fails-to-properly-enforce-scope-authorization-when-the)
- [WSO2 Identity Server privilege escalation via shared database](https://junglewise.ai/threats/cve-2026-4052-this-issue-only-impacts-deployments-where-wso2-identity-server-is)
- [WSO2 Access token issuance without IDP status validation](https://junglewise.ai/threats/cve-2025-1397-when-utilizing-jwt-bearer-or-saml2-bearer-grant-types-the-system)
- [WSO2 products sensitive information disclosure in Event Publisher logs](https://junglewise.ai/threats/cve-2026-18800-when-an-event-publisher-output-adapter-is-configured-with)
- [WSO2 System REST APIs access control bypass](https://junglewise.ai/threats/cve-2025-11969-the-system-rest-apis-do-not-correctly-enforce-access-control)