Vulnerability in Nextcloud Guests
CVE-2024-22402
Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users were able to load the first page of apps they were actually not allowed to access. Depending on the selection of apps installed this may present a permissions bypass. It is recommended that the Guests app is upgraded to 2.4.1, 2.5.1 or 3.0.1. There are no known workarounds for this vulnerability.
EPSS: 0.005 (40.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Nextcloud Guests — versions 2.5.0, 3.0.0
- Nextcloud Security-advisories — versions >= 2.4.0, < 2.4.1, >= 2.5.0, < 2.5.1, >= 3.0.0, < 3.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-22402?
- CVE-2024-22402 is a medium-severity vulnerability in Nextcloud Guests, classified under Improper Preservation of Permissions. CVSS score: 5.4/10. Published 2024-01-18.
- How severe is CVE-2024-22402?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2024-22402 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.