Cross-site scripting in OTRS
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-21434 |
| CWE-ID | CWE-79 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
OTRS Web applications / Other software |
| Vendor | otrs.org |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Cross-site scripting
EUVDB-ID: #VU51872
Risk: Low
CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21434
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe vulnerability allows a remote privileged user to read and manipulate data.
Survey administrator can craft a survey in such way that malicious code can be executed in the agent interface (i.e. another agent who wants to make changes in the survey). This issue affects: OTRS AG Survey 6.0.x version 6.0.20 and prior versions; 7.0.x version 7.0.19 and prior versions.
MitigationInstall update from vendor's website.
Vulnerable software versionsOTRS: 6.0.0 - 6.0.13
External linkshttp://otrs.com/release-notes/otrs-security-advisory-2021-01/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
