Advisory Weakness Curation

Leaking of user information on Cross-Domain communication in sysend ### Impact Users that use Cross-Origin communication and send sensitive information make it possible for this data to be intercepted. This is not a big impact because it happens only on the same browser. ### Patches It has been patched in version 1.10.0 ### Workarounds The only workaround is to not send sensitive information with sysend messages.

Exposure of Sensitive Information to an Unauthorized Actor sysend.js is a library that allows a user to send messages between pages that are open in the same browser. Users that use cross-origin communication may have their communications intercepted. Impact is limited by the communication occurring in the same browser. This issue has been patched in sysend.js version 1.10.0. The only currently known workaround is to avoid sending communications that a user does not want to have intercepted via sysend messages.