CVE-2023-49791: Workflows do not require password confirmation on API level
First published: Fri Dec 22 2023(Updated: )
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server prior to versions 26.0.9 and 27.1.4; as well as Nextcloud Enterprise Server prior to versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4; when an attacker manages to get access to an active session of another user via another way, they could delete and modify workflows by sending calls directly to the API bypassing the password confirmation shown in the UI. Nextcloud Server versions 26.0.9 and 27.1.4 and Nextcloud Enterprise Server versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4 contain a patch for this issue. No known workarounds are available.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Server | >=23.0.0<23.0.12.13 | |
| Nextcloud Server | >=24.0.0<24.0.12.9 | |
| Nextcloud Server | >=25.0.0<25.0.13.4 | |
| Nextcloud Server | >=26.0.0<26.0.9 | |
| Nextcloud Server | >=26.0.0<26.0.9 | |
| Nextcloud Server | >=27.0.0<27.1.4 | |
| Nextcloud Server | >=27.0.0<27.1.4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-49791?
CVE-2023-49791 has a medium severity rating due to potential unauthorized access to sensitive data.
How do I fix CVE-2023-49791?
To fix CVE-2023-49791, upgrade your Nextcloud Server to version 26.0.9, 27.1.4, or applicable enterprise versions.
Which versions are affected by CVE-2023-49791?
CVE-2023-49791 affects Nextcloud Server versions prior to 26.0.9 and 27.1.4, as well as specific enterprise versions.
Is CVE-2023-49791 a remote code execution vulnerability?
No, CVE-2023-49791 is not classified as a remote code execution vulnerability, but it can lead to unauthorized access.
Are there any known exploits for CVE-2023-49791?
There have been reports indicating that CVE-2023-49791 has been exploited in the wild.
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- vendor/nextcloud
- canonical/nextcloud server
- version/nextcloud server/23.0.0
- version/nextcloud server/24.0.0
- version/nextcloud server/25.0.0
- version/nextcloud server/26.0.0
- version/nextcloud server/27.0.0