CVE-2025-69417

5.0 MEDIUM

📋 TL;DR

This vulnerability allows a non-server device token to retrieve share tokens intended for unrelated access via the shared_servers endpoint in Plex Media Server. This affects Plex Media Server users with shared server access enabled. The issue could allow unauthorized access to shared media content.

💻 Affected Systems

Products:
  • Plex Media Server
Versions: Through 2025-12-31
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems with shared server functionality enabled. The vulnerability is in the plex.tv backend infrastructure.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could gain unauthorized access to all shared media libraries across multiple Plex servers, potentially exposing private media content.

🟠

Likely Case

Limited unauthorized access to some shared media content that the attacker shouldn't have permission to view.

🟢

If Mitigated

Minimal impact if proper access controls and network segmentation are in place, limiting exposure to authorized users only.

🌐 Internet-Facing: MEDIUM - Plex servers exposed to the internet could be targeted, but exploitation requires valid device tokens.
🏢 Internal Only: LOW - Internal network exploitation would require an attacker to already have network access and valid device tokens.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a valid non-server device token and knowledge of the shared_servers endpoint. No public exploit code is available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not yet released

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Monitor Plex security advisories for updates. 2. Apply patches when available from official Plex channels. 3. The fix will likely require backend updates from Plex.

🔧 Temporary Workarounds

Disable Server Sharing

all

Temporarily disable Plex server sharing functionality to prevent exploitation

Navigate to Settings > Server > Remote Access > Disable Remote Access

Network Segmentation

all

Restrict Plex server access to trusted networks only

Configure firewall rules to limit Plex server access to internal networks

🧯 If You Can't Patch

  • Implement strict access controls and monitor for unusual share token requests
  • Consider using VPN for remote Plex access instead of direct internet exposure

🔍 How to Verify

Check if Vulnerable:

Check if your Plex Media Server version is affected by comparing against the vulnerable version range

Check Version:

Check Plex Media Server version in Settings > Server > General

Verify Fix Applied:

Verify that share tokens cannot be retrieved by non-server device tokens after patching

📡 Detection & Monitoring

Log Indicators:

  • Unusual share token retrieval requests
  • Multiple failed authentication attempts to shared_servers endpoint

Network Indicators:

  • Abnormal traffic patterns to plex.tv backend endpoints
  • Unexpected share token requests from unauthorized devices

SIEM Query:

source="plex.log" AND ("shared_servers" OR "share_token") AND status!=200

🔗 References

📤 Share & Export