Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) do not adequately invalidate user sessions. Successful exploitation could lead to unauthorized access to restricted resources. Access to the admin console is not required for successful exploitation.
Published 2021-02-11 20:15:15
Updated 2021-02-16 15:16:00
View at NVD,   CVE.org
Vulnerability category: Bypass

Exploit prediction scoring system (EPSS) score for CVE-2021-21031

0.27%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21031

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
5.6
MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
2.2
3.4
Adobe Systems Incorporated

CWE ids for CVE-2021-21031

  • According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."
    Assigned by: psirt@adobe.com (Primary)

References for CVE-2021-21031

Products affected by CVE-2021-21031

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