Vulnerability in Nextcloud Server
CVE-2024-22403
Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.0 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (36.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.8% 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 Server
- Nextcloud Security-Advisories — versions < 28.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36 (Vendor Advisory)
- github.com/nextcloud/server/pull/40766 (Patch, Vendor Advisory)
- hackerone.com/reports/1784162 (Permissions Required, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
Frequently asked questions
- What is CVE-2024-22403?
- CVE-2024-22403 is a low-severity vulnerability in Nextcloud Server, classified under Insufficient Session Expiration. CVSS score: 3.0/10. Published 2024-01-18.
- How severe is CVE-2024-22403?
- Low severity. CVSS v3 base score is 3.0 out of 10.
- Is CVE-2024-22403 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.