CVE-2026-50644 Overview
CVE-2026-50644 is a SQL injection vulnerability in SOPlanning, an open-source online planning tool. An attacker holding parameters_all rights can inject SQL commands into the audit retention configuration form. The malicious payload is persisted in the application and executes when the audit functionality is accessed by any user, including administrators. The issue was resolved in SOPlanning version 1.56.01. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).
Critical Impact
An authenticated attacker with high-privilege configuration rights can execute arbitrary SQL statements against the SOPlanning database, leading to full compromise of stored planning data and potential lateral movement within the backing database.
Affected Products
- SOPlanning versions prior to 1.56.01
- SOPlanning audit retention configuration component
- Deployments exposing SOPlanning to authenticated users with parameters_all rights
Discovery Timeline
- 2026-07-09 - CVE-2026-50644 published to NVD
- 2026-07-09 - Last updated in NVD database
- Fix released - SOPlanning 1.56.01 addresses the vulnerability
Technical Details for CVE-2026-50644
Vulnerability Analysis
SOPlanning exposes an audit retention configuration form accessible to users granted the parameters_all permission. Input submitted through this form is stored and later concatenated into SQL statements without proper parameterization or escaping. The attack is stored and second-order: the injected payload persists in the configuration and executes only when the audit functionality is subsequently invoked. This delayed trigger allows the payload to run in the session context of any user who accesses audit features, including administrators.
Root Cause
The root cause is unsafe handling of configuration parameters written to the audit retention setting. SOPlanning fails to neutralize SQL metacharacters before embedding the stored value into audit queries, resulting in CWE-89. Parameterized queries or strict allow-list validation on retention values would have prevented the injection.
Attack Vector
The vector is network-based and requires an authenticated account with parameters_all rights. The attacker submits a crafted retention value containing SQL syntax through the audit configuration form. The application persists this value. When the audit page is next loaded, the stored payload is embedded in a database query and executed with the privileges of the SOPlanning database user. Impact includes reading, modifying, or deleting arbitrary rows across SOPlanning tables. Refer to the CERT Poland CVE-2026-50644 advisory for additional technical detail.
Detection Methods for CVE-2026-50644
Indicators of Compromise
- Unexpected values in the SOPlanning audit retention configuration containing SQL syntax such as UNION, SELECT, comment markers (--, /*), or stacked queries (;).
- Database query errors or anomalous long-running queries originating from the SOPlanning audit module.
- Modifications to the parameters table performed by accounts with parameters_all rights outside normal administrative windows.
Detection Strategies
- Review SOPlanning configuration change logs for edits to the audit retention field and correlate with the submitting user account.
- Enable database query logging on the SOPlanning schema and alert on syntactically unusual statements originating from the application user.
- Inspect stored configuration values in the database directly and flag entries that are not numeric or that contain SQL keywords.
Monitoring Recommendations
- Monitor authentication events for accounts holding the parameters_all role and alert on new grants of this permission.
- Track HTTP POST requests to the SOPlanning parameters endpoint and retain full request bodies for forensic review.
- Baseline query patterns from the SOPlanning application user and alert on deviations such as INFORMATION_SCHEMA access or write operations to unexpected tables.
How to Mitigate CVE-2026-50644
Immediate Actions Required
- Upgrade SOPlanning to version 1.56.01 or later, which contains the vendor fix.
- Audit all accounts currently assigned the parameters_all right and revoke the permission from users who do not require it.
- Inspect the audit retention configuration value in the database and reset it to a known-good numeric value if any suspicious content is present.
Patch Information
The vendor resolved this issue in SOPlanning 1.56.01. Download the fixed release from the SOPlanning project site and review the CERT Poland advisory for confirmation of the fixed version. Apply the update in a staged environment before rolling to production.
Workarounds
- Restrict access to the SOPlanning parameters interface at the network layer, permitting only trusted administrative source IPs.
- Temporarily remove the parameters_all right from all non-essential accounts until the patch is applied.
- Enforce database-level least privilege on the SOPlanning application user by removing rights to sensitive tables or system schemas where feasible.
# Example: verify installed SOPlanning version and plan upgrade
grep -R "VERSION" /var/www/soplanning/ | grep -i version
# Then deploy release 1.56.01 or later from https://www.soplanning.org/en/
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
