LOW CVSS 3.2
Published: 2022-09-17

CVE-2022-39210

nextcloud nextcloud Security Advisory (CVE-2022-39210)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-39210 impacting nextcloud nextcloud. Evaluated with CVSS Base Score of 3.2 (LOW).

Original NVD Description

Source: NIST NVD
Nextcloud android is the official Android client for the Nextcloud home server platform. Internal paths to the Nextcloud Android app files are not properly protected. As a result access to internal files of the from within the Nextcloud Android app is possible. This may lead to a leak of sensitive information in some cases. It is recommended that the Nextcloud Android app is upgraded to 3.21.0. There are no known workarounds for this issue.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
Low (C:L)
Partial information leakage
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product nextcloud / nextcloud
Affected Versions *
Weakness Enumeration CWE-22

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2022-39210 impacting nextcloud nextcloud.

⚡ Nuclei Detection Template (YAML) cve-2022-39210.yaml
id: cve-2022-39210

info:
  name: nextcloud nextcloud - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: low
  description: |
    Automated signature & scanner for CVE-2022-39210 affecting nextcloud nextcloud.
    Evaluation: Nextcloud android is the official Android client for the Nextcloud home server platform. Internal paths to the Nextcloud Android app files are not pro...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-39210
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
    cvss-score: 3.2
    cve-id: CVE-2022-39210
    cwe-id: CWE-22
  tags: cve,cve-2022-39210,nextcloud,nextcloud,low

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "nextcloud"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-39210.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-39210
# Target: nextcloud nextcloud | CVSS: 3.2 (LOW)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-39210 (nextcloud nextcloud)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against nextcloud nextcloud scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2022-39210.sh
# Recommended Remediation & Patching Commands for CVE-2022-39210
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install nextcloud 2>/dev/null || \
sudo dnf upgrade nextcloud 2>/dev/null || \
sudo yum update nextcloud

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i nextcloud 2>/dev/null || rpm -qa | grep -i nextcloud

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2022-39210 in nextcloud nextcloud?

Review vendor-specific security notices and update nextcloud nextcloud packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2022-39210?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2022-39210?

CVE-2022-39210 is classified with a CVSS 3.1 Base Score of 3.2 (LOW). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
3.2
LOW SEVERITY
CVE ID CVE-2022-39210
Weakness CWE-22
Vendor nextcloud
Product nextcloud
Published 2022-09-17
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N