XSS Vulnerability in osTicket Affected by Unvalidated Echo Output
CVE-2020-16193

5.4MEDIUM

Key Information:

Vendor

Osticket

Status
Osticket
Vendor
CVE Published:
26 August 2020

What is CVE-2020-16193?

The osTicket platform prior to version 1.14.3 is susceptible to a Cross-Site Scripting (XSS) vulnerability due to an unvalidated output in the include/staff/banrule.inc.php file. Specifically, the line of code that echoes the $info['notes'] variable does not perform adequate input validation, allowing malicious actors to inject arbitrary scripts. This vulnerability can potentially be exploited by attackers to execute harmful scripts in the context of an authenticated user's session, leading to unauthorized actions or data leakage.

References

https://github.com/osTicket/osTicket/blob/develop/include...
x_refsource_MISC
https://github.com/osTicket/osTicket/pull/5616/commits/fb...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.