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WSO2 carbon-apimgt affected by an authenticated stored cross-site scripting (XSS) vulnerability

Moderate severity GitHub Reviewed Published Sep 23, 2025 to the GitHub Advisory Database • Updated Sep 27, 2025

Package

maven org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api (Maven)

Affected versions

< 9.31.117

Patched versions

9.31.117
maven org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1 (Maven)
< 9.31.117
9.31.117

Description

An authenticated stored Cross-Site Scripting (XSS) vulnerability exists in WSO2 API Manager components (carbon-apimgt) due to insufficient validation of user-supplied input during API document upload in the Publisher portal.

A user with publisher privileges can upload a crafted API document whose contents are later rendered in the UI for other users, leading to attacker-controlled script execution. Likely outcomes include redirection to malicious sites, unauthorized UI modifications, or exfiltration of data accessible to the browser; session hijacking is mitigated by the use of HttpOnly session cookies.

To remediate, update to version 9.31.117 or above.

References

Published by the National Vulnerability Database Sep 23, 2025
Published to the GitHub Advisory Database Sep 23, 2025
Reviewed Sep 23, 2025
Last updated Sep 27, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(8th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2025-4760

GHSA ID

GHSA-cmjc-qp7j-xgwr

Source code

Credits

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