CVE-2026-37504Network attack vector

Proxy-node impersonation via logged query token

Published May 1, 2026 · Updated May 1, 2026

Sensitive-token exposure in V2Board 1.7.4 and earlier allows attackers to impersonate proxy nodes via recorded request URLs. UniProxyController.php accepts server_token in the URL query string, causing routine web infrastructure to retain the credential. Access to server, proxy, CDN, browser, or Referer records is required; the recovered token permits proxy-node impersonation and traffic interception.

CVSS severity7.5
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-token exposure in V2Board 1.7.4 and earlier allows attackers to impersonate proxy nodes via recorded request URLs. UniProxyController.php accepts server_token in the URL query string, causing routine web infrastructure to retain the credential. Access to server, proxy, CDN, browser, or Referer records is required; the recovered token permits proxy-node impersonation and traffic interception.

The record

CVE
CVE-2026-37504
Published
May 1, 2026
Updated
May 1, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-598, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2026CVE publishedPublication date reported by the CVE source.
  2. May 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-598Use of HTTP Request With Sensitive Query String
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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