CVE-2021-21441 - CVE House
Back to Database
Status published High CVE-2021-21441

XSS in the ticket overview screens

Vulnerability Description

There is a XSS vulnerability in the ticket overview screens. It's possible to collect various information by having an e-mail shown in the overview screen. Attack can be performed by sending specially crafted e-mail to the system and it doesn't require any user intraction. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-21441

Credits & Attribution

No credits recorded in the NVD database.

References

More from OTRS AG

View All →
CVE-2025-24391
Possible user enumeration
Medium 5.3
CVE-2025-24390
Missing Cookie Flags
Medium 6.8
CVE-2025-24389
SMTP Password will be shown in cleartext on some SMTP errors
Medium 6.3
CVE-2025-24388
Unsafe handling of AJAX calls
Low 3.8
CVE-2025-24387
Missing CSRF protection
Medium 4.8

Affected Vendor

Affected Software

((OTRS)) Community Edition, OTRS
Vulnerable Versions:
6.0.1, 7.0.x

Timeline

Official Publish: June 16th, 2021
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact