CVE-2013-6968: Cisco WebEx Training Center provides different error messages for registration attempts depending on whethe...

Security readout for executives and security teams

This issue let outsiders infer whether an email address was registered for Cisco WebEx Training Center by observing different registration error messages. It is a privacy and reconnaissance problem, not evidence of direct system takeover. The source bundle does not provide CVSS, affected-version detail, or a named patch status. Exposure is most likely where Cisco WebEx Training Center registration workflows were used and attendee registration status was sensitive. Current exposure cannot be determined from the bundle because product version, service state, and remediation status are not provided. Treat as a privacy and phishing-enablement risk. Prioritize validation if WebEx Training Center handled sensitive attendee lists, executives, regulated events, or customer communities. It is not presented as a direct compromise vulnerability in the provided sources. Mitigation focus: Review Cisco Security Notice CVE-2013-6968 and Bug ID CSCul36003 for vendor-directed action.; Confirm whether WebEx Training Center registration is still used in your environment.; Check Cisco support history for fixed service or configuration status..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

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