CVE-2026-40546

Soplanning 1.32 and earlier generates static links for sharing ICAL calendars with embedded login information, allowing remote attackers to obtain a calendar owner's password via a brute-force attack on the embedded password hash.

SOPlanning is vulnerable to SQL injection in the audit retention configuration. An attacker with parameters_all rights can inject SQL commands into the audit configuration form which is then saved. Execution is triggered when the audit functionality is accessed by the attacker or another user.

SOPlanning version 1.55 and below is vulnerable to CSRF in the groupe_save endpoints (create, modify, delete). An attacker can craft a malicious website that, when visited by an authenticated user, automatically sends a forged request.

SOPlanning version 1.55 and below does not verify uploaded file extensions, allowing an authenticated attacker to upload a crafted ZIP archive containing a malicious file.

SOPlanning version 1.55 and below is vulnerable to Path Traversal in backup endpoints. An authenticated remote attacker can exploit a vulnerable endpoint to read and execute files previously added via the backup functionality. Additionally, due to CVE-2026-40543, any backup file can be read by an unauthorized user.

A Reflected XSS vulnerability in SOPlanning (versions 1.55 and below) via the taches parameter. An attacker can craft a malicious URL which, when opened by an authenticated victim, results in arbitrary JavaScript execution in the victim's browser.

Stored XSS vulnerability in SOPlanning version 1.55 and below. An authenticated attacker can upload a crafted ZIP archive with a malicious user.csv file containing JavaScript, which executes when a user clicks the Edit button.

SOPlanning version 1.55 and below does not enforce authorization for backup functionalities. An unauthenticated attacker can directly query backup-related endpoints and retrieve backup archives containing user databases with usernames and password hashes, as well as the config.csv file with additional sensitive information.