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CVE-2026-22200

Enhancesoft Osticket injection

7.5 HIGHPublic exploitEPSS 73.6%
  1. Published12 Jan 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Enhancesoft Osticket≥ 1.17 < 1.17.7 · ≥ 1.18 < 1.18.3

Remediation

Fixed in
Enhancesoft Osticket≥ 1.17.7

References

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Frequently asked

Is CVE-2026-22200 being actively exploited?

CVE-2026-22200 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 73.6%.

How severe is CVE-2026-22200?

CVE-2026-22200 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 73.6% probability of exploitation.

Which products are affected by CVE-2026-22200?

Affected products include Enhancesoft Osticket.

How do I fix CVE-2026-22200?

Upgrade affected software to a fixed version, for example Enhancesoft Osticket 1.17.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-22200 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.