LeadConnector permits unauthenticated XSS
LeadConnector through 4.0.5 allows an unauthenticated attacker to inject script into affected output. The script executes when a victim interacts with that output and can act within the victim's browser session.
- Component
- LeadConnector
- Plugin slug
leadconnector- Affected
- n/a through 4.0.5
- Safe version
4.0.6- Published
- Aug 31, 2026
This CVE was published Aug 31, 2026 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update LeadConnector to 4.0.6 or later and review affected integration content and privileged-session activity.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Unauthenticated Cross Site Scripting (XSS) in LeadConnector <= 4.0.5 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L