MEDIUM CVSS 6.4
Published: 2026-03-31

CVE-2026-34716

wwbn avideo Security Advisory (CVE-2026-34716)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-34716 impacting wwbn avideo. Evaluated with CVSS Base Score of 6.4 (MEDIUM).

Original NVD Description

Source: NIST NVD
WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo YPTSocket plugin's caller feature renders incoming call notifications using the jQuery Toast Plugin, passing the caller's display name directly as the heading parameter. The toast plugin constructs the heading as raw HTML ('<h2>' + heading + '</h2>') and inserts it into the DOM via jQuery's .html() method, which parses and executes any embedded HTML or script content. An attacker can set their display name to an XSS payload and trigger code execution on any online user's browser simply by initiating a call - no victim interaction is required beyond being connected to the WebSocket. At time of publication, there are no publicly available patches.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product wwbn / avideo
Affected Versions *
Weakness Enumeration CWE-79

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-2026-34716 impacting wwbn avideo.

⚡ Nuclei Detection Template (YAML) cve-2026-34716.yaml
id: cve-2026-34716

info:
  name: wwbn avideo - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-34716 affecting wwbn avideo.
    Evaluation: WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo YPTSocket plugin&#x27;s caller feature renders incoming call noti...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-34716
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 6.4
    cve-id: CVE-2026-34716
    cwe-id: CWE-79
  tags: cve,cve-2026-34716,wwbn,avideo,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "avideo"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-34716.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-34716
# Target: wwbn avideo | CVSS: 6.4 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-34716 (wwbn avideo)...")
    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 wwbn avideo 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-2026-34716.sh
# Recommended Remediation & Patching Commands for CVE-2026-34716
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install avideo 2>/dev/null || \
sudo dnf upgrade avideo 2>/dev/null || \
sudo yum update avideo

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

# 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.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-34716 in wwbn avideo?

Review vendor-specific security notices and update wwbn avideo 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-2026-34716?

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-2026-34716?

CVE-2026-34716 is classified with a CVSS 3.1 Base Score of 6.4 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.4
MEDIUM SEVERITY
CVE ID CVE-2026-34716
Weakness CWE-79
Vendor wwbn
Product avideo
Published 2026-03-31
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N