Sonatype Nexus Repo 3.83.0: XSS from missing security header
CVE-2025-13488 Published on December 4, 2025
Nexus Repository 3 - Stored Cross-Site Scripting (XSS)
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.
Vulnerability Analysis
CVE-2025-13488 is exploitable with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a XSS Vulnerability?
The software 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.
CVE-2025-13488 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-13488
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Affected Versions
Sonatype Nexus Repository:- Version 3.83.0, <= 3.86.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.