CVE-2021-47663

Improper session handling

Published Apr 24, 2025 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
Due to improper JSON Web Tokens implementation an unauthenticated remote attacker can guess a valid session ID and therefore impersonate a user to gain full access.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-12115 Due to improper JSON Web Tokens implementation an unauthenticated remote attacker can guess a valid session ID and therefore impersonate a user to gain full access.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Due to improper JSON Web Tokens implementation an unauthenticated remote attacker can guess a valid session ID and therefore impersonate a user to gain full access.
Title Improper session handling
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Apr 24, 2025, 3:22 PM
Reserved
Mar 17, 2025, 8:25 AM
Status
Deferred
Published
Apr 24, 2025, 10:15 AM
Modified
Jun 17, 2026, 4:18 AM