Is CVE-2026-55184 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-55184?

CVE-2026-55184 has a CVSS v3 severity of LOW (3.5).

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CVE-2026-55184

Description

EspoCRM is an open source customer relationship management application. Prior to 9.3.9, a user with Email Template or PDF Template edit permission can store crafted HTML that bypasses moderateSanitizeHtml(). When another user opens the template in edit mode and clientCspDisabled is true, the stored payload executes and can hijack the user's session. This issue is fixed in version 9.3.9.