CVE-2026-22200
highpriority · attend · 66EPSS 0.736 · 99 %ileexploit · functionalEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (2)
Public proof-of-concept and weaponised exploit code.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-22200cnnvd
- https://github.com/osTicket/osTicket/commit/c59b067cnnvd
- https://github.com/osTicket/osTicket/releases/tag/v1.17.7cnnvd
- https://github.com/osTicket/osTicket/releases/tag/v1.18.3cnnvd
- https://osticket.com/cnnvd
- https://www.vulncheck.com/advisories/osticket-pdf-export-arbitrary-file-readcnnvd
- https://github.com/osTicket/osTicket/commit/c59b067enisa_euvd
- https://github.com/osTicket/osTicket/releases/tag/v1.17.7enisa_euvd
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