CVE-2025-13488
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-04

Last updated on: 2025-12-08

Assigner: Sonatype

Description
Due to a regression introduced in version 3.83.0, a security header is no longer applied to certain user-uploaded content served from repositories. This may allow an authenticated attacker with repository upload privileges to exploit a stored cross-site scripting (XSS) vulnerability with user context.
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Meta Information
Published
2025-12-04
Last Modified
2025-12-08
Generated
2026-06-16
AI Q&A
2025-12-04
EPSS Evaluated
2026-06-15
NVD
CVE-2025-13488
EUVD
EUVD-2025-201259
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
sonatype nexus_repository 3.83.0
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 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.
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Executive Summary

This vulnerability is a regression introduced in version 3.83.0 where a security header is no longer applied to certain user-uploaded content served from repositories. As a result, an authenticated attacker with repository upload privileges can exploit a stored cross-site scripting (XSS) vulnerability using the context of the user viewing the content.

Impact Analysis

The vulnerability can allow an attacker who has upload privileges to inject malicious scripts into user-uploaded content. When other users view this content, the malicious scripts execute in their browsers with their user context, potentially leading to unauthorized actions, data theft, or session hijacking.

Mitigation Strategies

To mitigate this vulnerability, upgrade your Sonatype Nexus Repository to version 3.87.0 or later, where the regression causing the missing security header has been fixed. [1]

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