Vulnerability · Published Aug 10, 2023 · Assigned by GitHub_M
CVE-2023-39961Text does not respect "Allow download" permissions
Low 3.5
In plain English
A low-severity improper access control in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | >= 24.0.4, < 24.0.12.5>= 25.0.0, < 25.0.9>= 27.0.0, < 27.0.1>= 26.0.0, < 26.0.4 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qhgm-w4gx-gvgp x_refsource_CONFIRM
- https://github.com/nextcloud/text/pull/4481 x_refsource_MISC
- https://hackerone.com/reports/1965156 x_refsource_MISC