GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).
Published 2021-10-21 01:15:07
Updated 2021-11-05 18:46:38
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Cross-site request forgery (CSRF)Gain privilege

Exploit prediction scoring system (EPSS) score for CVE-2021-42097

Probability of exploitation activity in the next 30 days: 0.26%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 64 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-42097

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
8.5
HIGH AV:N/AC:M/Au:S/C:C/I:C/A:C
6.8
10.0
NIST
8.0
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
2.1
5.9
NIST

CWE ids for CVE-2021-42097

  • The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-42097

Products affected by CVE-2021-42097

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