CVE-2020-16193

MEDIUM EPSS 43.4%
Published Aug 26, 20205y ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Aug 26, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

Description

osTicket before 1.14.3 allows XSS because include/staff/banrule.inc.php has an unvalidated echo $info['notes'] call.

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
43.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
osticketosticket* <1.14.3

References 2

  • github.com https://github.com/osTicket/osTicket/blob/develop/include/staff/banrule.inc.php#L67
    PatchThird Party Advisory
  • github.com https://github.com/osTicket/osTicket/pull/5616/commits/fb570820ef1138776f929a179906e1d8089179d9
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/osTicket/osTicket/blob/develop/include/staff/banrule.inc.php#L67
    PatchThird Party Advisory
  • github.com https://github.com/osTicket/osTicket/pull/5616/commits/fb570820ef1138776f929a179906e1d8089179d9
    PatchThird Party Advisory