CVE-2021-44227
mailman: CSRF token bypass allows to perform CSRF attacks and admin takeover
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 26, 2021
Updated · September 8, 2026
Description
A Cross-Site Request Forgery (CSRF) attack can be performed in mailman due to a CSRF token bypass. CSRF tokens are not checked against the right type of user when performing admin operations and a token created by a regular user can be used by an admin to perform an admin-level request, effectively bypassing the protection provided by CSRF tokens. A remote attacker with an account on the mailman system can use this flaw to perform a CSRF attack and perform operations on behalf of the victim admin.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
CVSS / CWE
CVSS 3.1 · 8CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE-352 · Cross-Site Request Forgery (CSRF)