Description
Affected versions of Flowintel render calendar event titles using innerHTML. Because those titles are derived from case titles, a user able to create or modify a case title could store HTML or script-capable content that is later interpreted by the browser when another user views the calendar.


The fix changes:


titleEl.innerHTML = arg.event.title


to:


titleEl.textContent = arg.event.title || ''

and similarly stops using innerHTML for the static download icon.

Version impacted =>3.3.0
Published: 2026-08-27
Score: 5.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 27 Aug 2026 13:00:00 +0000

Type Values Removed Values Added
Description Affected versions of Flowintel render calendar event titles using innerHTML. Because those titles are derived from case titles, a user able to create or modify a case title could store HTML or script-capable content that is later interpreted by the browser when another user views the calendar. The fix changes: titleEl.innerHTML = arg.event.title to: titleEl.textContent = arg.event.title || '' and similarly stops using innerHTML for the static download icon. Version impacted =>3.3.0
Title Flowintel Stored XSS in Calendar via Malicious Case Title
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: CIRCL

Published:

Updated: 2026-08-27T12:48:39.314Z

Reserved: 2026-08-27T12:48:37.284Z

Link: CVE-2026-81814

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T13:18:43.790

Modified: 2026-08-27T13:18:43.790

Link: CVE-2026-81814

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')