CVE-2025-66483
Received Received - Intake
Session Fixation in IBM Aspera Shares Allows User Impersonation

Publication date: 2026-04-01

Last updated on: 2026-04-06

Assigner: IBM Corporation

Description
IBM Aspera Shares 1.9.9 through 1.11.0 does not invalidate session after a password reset which could allow an authenticated user to impersonate another user on the system.
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Meta Information
Published
2026-04-01
Last Modified
2026-04-06
Generated
2026-06-16
AI Q&A
2026-04-02
EPSS Evaluated
2026-06-15
NVD
CVE-2025-66483
EUVD
EUVD-2025-209178
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ibm aspera_shares From 1.9.9 (inc) to 1.11.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-613 According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."
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Executive Summary

IBM Aspera Shares versions 1.9.9 through 1.11.0 have a vulnerability where the system does not invalidate a user's session after a password reset.

This flaw could allow an authenticated user to impersonate another user on the system by continuing to use a session that should have been terminated.

Impact Analysis

This vulnerability can impact you by allowing an authenticated user to impersonate another user, potentially gaining unauthorized access to that user's data or privileges.

Because the session remains valid after a password reset, an attacker could maintain access even after the legitimate user attempts to secure their account.

The CVSS base score of 6.3 indicates a medium severity with potential impacts on confidentiality, integrity, and availability.

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