Dolibarr ERP & CRM CVE-2026-31018

Primary mitigation is upgrading to a patched version of Dolibarr if available-check the official Dolibarr GitHub repository (github.com/Dolibarr/dolibarr) security advisories and release notes for versions newer than 22.0.4 that address this PHP code injection flaw. No specific fix version was confirmed in the provided data, so verify directly with vendor sources. Until patching, implement these compensating controls with noted trade-offs: (1) Disable the Website module entirely if not business-critical-this eliminates the attack surface but removes website management functionality. (2) Restrict Website module access to only fully-trusted administrator accounts by modifying user permissions in Setup > Users-reduces insider threat risk but limits content management workflows. (3) Implement application-layer firewall rules (ModSecurity, NAXSI) to detect and block PHP code patterns in POST requests to Website module endpoints-may cause false positives requiring tuning and does not prevent exploitation via authenticated sessions. (4) Enable PHP disable_functions in php.ini to restrict dangerous functions (system, exec, passthru, shell_exec, proc_open) for the Dolibarr web directory-reduces impact of successful PHP injection but may break legitimate application features requiring testing. (5) Deploy file integrity monitoring (AIDE, Tripwire) to detect unauthorized PHP file modifications in the Dolibarr documents and website directories-provides detection but not prevention. Review the proof-of-concept details at github.com/PhDg1410/CVE/blob/main/CVE-2026-31018/README.md to understand specific exploitation vectors and tailor defenses accordingly.