CVE-2006-1537: Craig Knudsen WebCalendar 1.1.0-CVS allows remote attackers to obtain sensitive information via a direct re...

Security readout for executives and security teams

This is an old WebCalendar issue where public requests to certain internal or test PHP files can make the application reveal its server filesystem path in error messages. That path alone is not usually a full compromise, but it can help attackers map the environment and chain later attacks. Exposure is most likely limited to internet-facing or internally reachable WebCalendar 1.1.0-CVS deployments that allow direct web access to the named PHP files and display detailed PHP errors. Treat this as a low-priority legacy exposure unless WebCalendar 1.1.0-CVS is still reachable. The main business risk is attacker reconnaissance, not standalone compromise. Prioritize cleanup during legacy application hardening or internet exposure reduction. Mitigation focus: Check current WebCalendar vendor guidance for a fixed or supported release path.; Remove or restrict public access to test, include, and internal PHP paths.; Disable detailed PHP error display in production environments..

Prepared

Jun 29, 2026, 13:35 UTC (UTC+00:00)

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