Vulnerability Description
Enhancesoft osTicket versions 1.18.x prior to 1.18.3 and 1.17.x prior to 1.17.7 contain an arbitrary file read vulnerability in the ticket PDF export functionality. A remote attacker can submit a ticket containing crafted rich-text HTML that includes PHP filter expressions which are insufficiently sanitized before being processed by the mPDF PDF generator during export. When the attacker exports the ticket to PDF, the generated PDF can embed the contents of attacker-selected files from the server filesystem as bitmap images, allowing disclosure of sensitive local files in the context of the osTicket application user. This issue is exploitable in default configurations where guests may create tickets and access ticket status, or where self-registration is enabled.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Enhancesoft | Osticket | >= 1.17, < 1.17.7 |
Related Weaknesses (CWE)
References
- https://github.com/osTicket/osTicket/commit/c59b067Patch
- https://github.com/osTicket/osTicket/releases/tag/v1.17.7Release Notes
- https://github.com/osTicket/osTicket/releases/tag/v1.18.3Release Notes
- https://horizon3.ai/attack-research/attack-blogs/ticket-to-shell-exploiting-php-Exploit
- https://www.vulncheck.com/advisories/osticket-pdf-export-arbitrary-file-readThird Party Advisory
FAQ
What is CVE-2026-22200?
CVE-2026-22200 is a vulnerability with a CVSS score of 7.5 (HIGH). Enhancesoft osTicket versions 1.18.x prior to 1.18.3 and 1.17.x prior to 1.17.7 contain an arbitrary file read vulnerability in the ticket PDF export functionality. A remote attacker can submit a tick...
How severe is CVE-2026-22200?
CVE-2026-22200 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22200?
Check the references section above for vendor advisories and patch information. Affected products include: Enhancesoft Osticket.