CVE-2023-30540

Chat poll data can still be queried from API after purging history in Nextcloud talk

Description

Nextcloud Talk is a chat, video & audio call extension for Nextcloud. In affected versions a user that was added later to a conversation can use this information to get access to data that was deleted before they were added to the conversation. This issue has been patched in version 15.0.5 and it is recommended that users upgrad to 15.0.5. There are no known workarounds for this issue.

References

Link	Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjw	vendor advisory
https://github.com/nextcloud/spreed/pull/8985	patch
https://hackerone.com/reports/1894676	permissions required

Frequently Asked Questions

What is the severity of CVE-2023-30540?: CVE-2023-30540 has been scored as a low severity vulnerability.
How to fix CVE-2023-30540?: To fix CVE-2023-30540, 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-2023-30540 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-30540 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-2023-30540?: CVE-2023-30540 affects nextcloud security-advisories.

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Description

Category

CWE-200 – Exposure of Sensitive Information to an Unauthorized Actor

References

Frequently Asked Questions