CVE-2023-39961

Text does not respect "Allow download" permissions

Description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and 27.0.1, when a folder with images or an image was shared without download permissions, the user could add the image inline into a text file and download it. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qhgm-w4gx-gvgp vendor advisory
https://github.com/nextcloud/text/pull/4481 patch
https://hackerone.com/reports/1965156 permissions required

Frequently Asked Questions

What is the severity of CVE-2023-39961?
CVE-2023-39961 has been scored as a low severity vulnerability.
How to fix CVE-2023-39961?
To fix CVE-2023-39961, 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-2023-39961 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-39961 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-2023-39961?
CVE-2023-39961 affects nextcloud security-advisories.
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