CVE-2006-6690: rtehtmlarea/pi1/class.tx_rtehtmlarea_pi1.php in Typo3 4.0.0 through 4.0.3, 3.7 and 3.8 with the rtehtmlarea...

Security readout for executives and security teams

This is a legacy TYPO3 remote command execution issue. An authenticated user could pass crafted input to the rtehtmlarea spell checker and cause server commands to run. The risk is mainly for old, internet-facing TYPO3 sites that still use the affected extension or have not applied the 2006 security update. Exposure is most likely in legacy TYPO3 deployments still running the listed versions with rtehtmlarea enabled. Modern TYPO3 environments are not identified as affected in the provided sources. Confirm both application version and extension presence before prioritizing remediation. Treat as high priority only where legacy TYPO3 is still present. The business impact could be server compromise, but the affected software is old and the attack requires authentication. Prioritize inventory first, then patch, isolate, or retire confirmed systems. Mitigation focus: Inventory TYPO3 instances and identify versions 3.7, 3.8, 4.0.0-4.0.3, and 4.1 beta.; Check whether the rtehtmlarea extension and SpellChecker plugin are installed or reachable.; Apply the TYPO3 security bulletin's recommended update or workaround from TYPO3-20061220-1..

Prepared

Jun 29, 2026, 08:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.