Read the docs
TI-2026-27809 Aliases CVE-2026-36214GHSA-ffr2-xp93-qf4x

Cross-site scripting in osTicket

Priority MEDIUM 62CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

osTicket versions from 1.10 up to 1.17.7 and from 1.18.0 up to 1.18.3 are vulnerable to a stored XSS due to a vulnerable Bootstrap Tooltip component and insufficient HTML sanitization, allowing remote attackers to execute arbitrary JavaScript in Agent or Admin sessions.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00378 32nd percentileScored 2026-11-07
Fix Fixed osTicket (osTicket): 1.17.8, 1.18.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
osticketosTicket1.10.0 to before 1.17.8; 1.18.0 to before 1.18.41.17.8, 1.18.4Patch availableCNA
  • osTicket Vendorosticket Affected 1.10.0 to before 1.17.8; 1.18.0 to before 1.18.4 Fixed in 1.17.8, 1.18.4 Patch available CNA

Remediation

  • Fix · CNA osTicket (osTicket) Fixed in 1.17.8, 1.18.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-36214
  2. 2026-10-03 Alias added: GHSA-ffr2-xp93-qf4x

References

Other 6

  • TI-2022-03911 Cross-site Scripting (XSS) - Reflected in osticket/osticket CVSS 3.1MEDIUM 5.4
  • TI-2023-01247 Cross-site Scripting (XSS) - Stored in osticket/osticket CVSS 3.1MEDIUM 6.1
  • TI-2025-28770 osTicket prior to v1.17.6 and v1.18.2 are vulnerable to Broken Access Control Vulnerability in /scp/ajax.php. CVSS 3.1MEDIUM 5.4
  • TI-2023-01245 Cross-site Scripting (XSS) - Generic in osticket/osticket CVSS 3.1MEDIUM 5.4
  • TI-2023-01244 Cross-site Scripting (XSS) - Reflected in osticket/osticket CVSS 3.1MEDIUM 5.4
  • TI-2023-01243 Cross-site Scripting (XSS) - Stored in osticket/osticket CVSS 3.1MEDIUM 5.4
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences