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CVE-2026-36214

MediumPublished

osTicket versions from 1.10 up to 1.17.7 and from 1.18.0 up to 1.18.3 are vulnerable to a stored XSS due to a vulnerable Bootstrap Tooltip component and...

Published: Jul 14, 2026
Updated: Aug 4, 2026
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

6.4/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 26.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

osTicket versions from 1.10 up to 1.17.7 and from 1.18.0 up to 1.18.3 are vulnerable to a stored XSS due to a vulnerable Bootstrap Tooltip component and insufficient HTML sanitization, allowing remote attackers to execute arbitrary JavaScript in Agent or Admin sessions.

Sources

osticket-stored-xss-security-assessmentInformational
Professional vulnerability assessment report for osTicket stored cross-site scripting, including business impact, remediation, and mitigation strategy.
CVE-2026-36214PoC
Stored Cross-Site Scripting (XSS) in osTicket via Vulnerable Bootstrap Tooltip Component

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