Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.
From VID-EEEC4E6F-FA71-11EA-9BB7-D4C9EF517024:
The Nextcloud project reports:
NC-SA-2020-026 (low): Password of share by mail is not hashed when
given on the create share call
A logic error in Nextcloud Server 19.0.0 caused a plaintext storage
of the share password when it was given on the initial create API
call.
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