CVE-2025-13488
BaseFortify
Publication date: 2025-12-04
Last updated on: 2025-12-08
Assigner: Sonatype
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| sonatype | nexus_repository | 3.83.0 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
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]
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.