Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-09-26T20:49:23.365Z
Updated: 2024-08-02T19:23:38.904Z
Reserved: 2023-09-08T20:57:45.573Z
Link: CVE-2023-42453
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-09-27T15:19:32.453
Modified: 2024-11-21T08:22:33.887
Link: CVE-2023-42453
Redhat
No data.