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Ticket to Shell: Exploiting PHP Filters and CNEXT in osTicket (CVE-2026-22200)

horizon3.ai | vulnerability | CVE-2026-22200 | #rce | #vulnerability-research
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Summary

CVE-2026-22200 impacts osTicket and lets anonymous attackers read arbitrary files and, in some cases, achieve RCE. Patched in osTicket 1.18.3 / 1.17.7.
CVE
CVE-2026-22200
Published
Collected

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