Xerte Online Tools Setup Reinstallation Authentication Bypass RCE Vulnerability
A vulnerability in the Xerte Online Tools allows for authentication bypass and remote code execution via reinstallation through the /setup/ folder, enabling attackers to reinstall the service to a remote database they control.
Browse PHP security risksQuick answer
Xerte Project Xerte Online Tools should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- Xerte Online Tools with reachable /setup/ folder
Fixed versions
- Apply the latest vendor-supported patched release and remove public setup access
How to fix it
Xerte Online Tools can be taken over through reinstallation via a reachable /setup/ folder, allowing attackers to point the service at a remote database they control. Update Xerte, remove public setup access, and review database configuration for unauthorized changes. This should be treated as a high-priority web application takeover risk.
- Inventory Xerte Online Tools deployments and check whether /setup/ is reachable from the web.
- Apply the latest vendor-supported patched release for Xerte Online Tools.
- Remove, disable, or block the /setup/ folder after installation and upgrades.
- Restrict administrative and setup-related paths to trusted admin networks only.
- Review configuration files, database connection settings, and application users for unauthorized reinstallation indicators.
- Rotate database credentials, administrator passwords, and integration secrets if setup exposure existed.
- Restore configuration from trusted backups if the site was pointed to an unauthorized database.
Scan now. Google sign-in is only needed to unlock fix guidance.
Verify the fix
- Confirm Xerte is updated and /setup/ is not publicly reachable.
- Validate setup cannot be used to reinstall or reconfigure the service remotely.
- Review web server and Xerte logs for setup folder access attempts.
- Test normal login, content authoring, and learner workflows after remediation.
- Run a Fixnx scan and confirm no public Xerte setup or admin path is exposed.
Related categories
Related security risks
More published guidance from the same primary category.
Trusted references
FAQ
What is affected by CVE-2026-14261?
Xerte Project Xerte Online Tools versions listed as affected should be reviewed: Xerte Online Tools with reachable /setup/ folder.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.