CVE-2026-22200 osTicket (1.18.x < 1.18.3, 1.17.x < 1.17.7) PDF Export Arbitrary File Read

Q: What is CVE-2026-22200?

CVE-2026-22200 is a high-severity path traversal vulnerability in Enhancesoft osTicket, published on 12 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2026-22200 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22200 exists.

Q: How do I fix CVE-2026-22200?

No fix has been published for CVE-2026-22200 yet. Limit exposure of the affected software until one is available.

High 8.7 Published 12 Jan 2026 Updated 14 Jul 2026

Remote attackers can read arbitrary server files via crafted HTML in tickets exported to PDF, exposing sensitive data in default configurations.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-22200?

CVE-2026-22200 is a high-severity path traversal vulnerability in Enhancesoft osTicket, published on 12 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-74

Which versions are affected by CVE-2026-22200?

It affects 1 product.

Products include Enhancesoft Osticket.

How do I fix CVE-2026-22200?

No fix has been published for CVE-2026-22200 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-22200 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22200 exists.

Public exploit code: 1 Metasploit module, 1 Nuclei template and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-4hcq-q3qf-q453.