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CVE-2026-22200

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.

Published Jan 12, 2026CWE-74EPSS 73.59%

Overview

CVE-2026-22200 is a high-severity vulnerability. It was published on January 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/osTicket/osTicket/commit/c59b067GitHubgithub.com/osTicket/osTicket/releases/tag/v1.17.7GitHubgithub.com/osTicket/osTicket/releases/tag/v1.18.3Refhorizon3.ai/attack-research/attack-blogs/ticket-to-shell-exploiting-php-filters-and-cnext-in-osticket-cve-2026-22200/Refwww.vulncheck.com/advisories/osticket-pdf-export-arbitrary-file-read

How CyberStrike helps

Frequently asked questions

What is CVE-2026-22200?

CVE-2026-22200 is a high-severity vulnerability. It was published on January 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-22200?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-22200?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-22200?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-22200 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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