CVE-2021-34357

Published: Nov 13, 2021Modified: Jun 17, 2026

6.1

Vector

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

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QmailAgent. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QmailAgent: QmailAgent 3.0.2 ( 2021/08/25 ) and later

Affected (1)

Products: Qnap: Qmailagent

1 product

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qnap Qmailagent	Before 3.0.2

Running on/with	Platform Versions
Qnap Nas	All versions

Related CWEs

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://www.qnap.com/en/security-advisory/qsa-21-47

Source: security@qnapsecurity.com.tw

Vendor Advisory

https://www.qnap.com/en/security-advisory/qsa-21-47

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.