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Insufficient Session Invalidation after User Logout

Moderate
sanojwr published GHSA-7r6m-qjwm-w44q May 22, 2025

Package

wire-webapp

Affected versions

2025-05-14-production.0

Patched versions

2025-05-20-production.0

Description

Description

A recently introduced change caused a regression resulting in sessions not being properly invalidated.

Impact

A user that logged out of the Wire webapp, will be automatically logged in again after re-opening the application. This does not happen when:

  • the user is logged in as a temporary user by selecting "This is a public computer" during login or

  • the user selects "Delete all your personal information and conversations on this device" upon logout.

Patches

The underlying issue has been fixed with wire-webapp version 2025-05-20-production.0.

Workarounds

This behavior can be prevented by either deleting all information upon logout as well as logging in as a temporary client (both scenarios described above).

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

CVE ID

CVE-2025-48061

Weaknesses

Insufficient Session Expiration

According to WASC, Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization. Learn more on MITRE.