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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (41.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
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
- github.com/nextcloud/security-advisories/security/advisories/GHSA-v3qw-7vgv-2fxj (Vendor Advisory)
- github.com/nextcloud/guests/pull/1082 (Patch, Vendor Advisory)
- hackerone.com/reports/2251074 (Permissions Required, Third Party Advisory)
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.