CVE-2023-45816

Unread bookmark reminder notifications that the user cannot access can be seen

Description

Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, there is an edge case where a bookmark reminder is sent and an unread notification is generated, but the underlying bookmarkable (e.g. post, topic, chat message) security has changed, making it so the user can no longer access the underlying resource. As of version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, bookmark reminders are now no longer sent if the user does not have access to the underlying bookmarkable, and also the unread bookmark notifications are always filtered by access. There are no known workarounds.

Category

3.3
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-v9r6-92wp-f6cf vendor advisory
https://github.com/discourse/discourse/commit/2c45b949ea0e9d6fa8e5af2dd07f6521ede08bf1 patch
https://github.com/discourse/discourse/commit/3c5fb871c0f54af47679ae71ad449666b01d8216 patch

Frequently Asked Questions

What is the severity of CVE-2023-45816?
CVE-2023-45816 has been scored as a low severity vulnerability.
How to fix CVE-2023-45816?
To fix CVE-2023-45816, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-45816 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-45816 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-45816?
CVE-2023-45816 affects discourse discourse.
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