CVE-2021-43331

mailman: XSS in Cgi/options.py via crafted URL

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Severity

Moderate

Red Hat Product Security

6.1

CVSS 3.1

Review impact separately from score.

Published · November 13, 2021

Updated · November 22, 2025

Description

A flaw was found in mailman in the Cgi/options.py user options page. This flaw allows a malicious attacker to carry out a Cross-site Scripting attack by providing a crafted URL as input, leading to the execution of arbitrary JavaScript code. The highest threat from this vulnerability is confidentiality and integrity.

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')