CVE-2025-13488 - CVE House
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Status published Medium CVE-2025-13488

Nexus Repository 3 - Stored Cross-Site Scripting (XSS)

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Seif Elsallamy / @0x21SAFE

References

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Affected Vendor

Affected Software

Nexus Repository
Vulnerable Versions:
3.83.0

Timeline

Official Publish: December 4th, 2025
Last Modified: December 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact