title: Expired Ephemeral Messages not reliably removed in wire-webapp
description: Wire webapp is a web client for the wire messaging protocol. In versions prior to 2022-01-27-production.0 expired ephemeral messages were not reliably removed from local chat history of Wire Webapp. In versions before 2022-01-27-production.0 ephemeral messages and assets might still be accessible through the local search functionality. Any attempt to view one of these message in the chat view will then trigger the deletion. This issue only affects locally stored messages. On premise instances of wire-webapp need to be updated to 2022-01-27-production.0, so that their users are no longer affected. There are no known workarounds for this issue.
problem types: CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer
affected:
{
product: wire-webapp
vendor: wireapp
versions:
status: affected, version: < 2022-01-27-production.0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 4.4
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]