CVE-2026-37504 — Sensitive server_token exposed via GET parameter in V2Board

CVE-2026-37504 — Sensitive server_token exposed via GET parameter in V2Board

CVE-2026-37504 — Sensitive server_token exposed via GET parameter in V2Board thru 1.7.4. In app/Http/Controllers/Server/UniProxyController.php, the server authentication token is accepted via GET parameter transmission. The token appears in URLs such as /api/v1/server/UniProxy/user?token=SECRET, cau

What This Means For You

  • If your environment is affected by this vulnerability type, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-37504 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

high T1071.001 Reconnaissance

Sensitive Server Token Exposed via GET Parameter in V2Board — CVE-2026-37504

Sigma YAML — free preview
title: Sensitive Server Token Exposed via GET Parameter in V2Board — CVE-2026-37504
id: scw-2026-05-01-ai-1
status: experimental
level: high
description: |
  Detects the specific URI pattern and GET parameter used to expose the server authentication token in V2Board versions prior to 1.7.4. This allows attackers to extract the token from logs and impersonate proxy server nodes.
author: SCW Feed Engine (AI-generated)
date: 2026-05-01
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-37504/
tags:
  - attack.reconnaissance
  - attack.t1071.001
logsource:
    category: webserver
detection:
  selection:
      cs-uri-query|contains:
          - 'token='
      cs-uri|startswith:
          - '/api/v1/server/UniProxy/user'
      cs-method|exact:
          - 'GET'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-37504 vulnerability CVE-2026-37504
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 01, 2026 at 19:16 UTC

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