CVE-2026-40545: Soplanning

Medium severity, CVSS 5.1. EPSS: 0.6% chance of exploitation in the next 30 days.

SOPlanning is vulnerable to Reflected XSS via the taches parameter. An attacker can craft a malicious URL which, when opened by authenticated victim, results in arbitrary JavaScript execution in the victim’s browser. This issue affects SOPlanning version 1.55 and below.

Affected products

• Soplanning Soplanning: up to and including 1.55

Published 2026-06-01. Last modified 2026-07-22.