CVE-2026-37504 Details
Description
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, causing it to be recorded in web server access logs, browser history, HTTP Referer headers, and proxy/CDN logs. An attacker who gains access to any log source can extract the token and impersonate a proxy server node, potentially intercepting all user traffic.
A vulnerability exists in V2Board versions through 1.7.4, where the server authentication token is exposed via a GET parameter in the UniProxyController. This token is included in URLs, such as '/api/v1/server/UniProxy/user?token=SECRET', and can be logged by web servers, browsers, proxies, and CDNs. An attacker with access to these logs can extract the token and impersonate a proxy server node, potentially intercepting user traffic.
The vulnerability can be remediated by moving token transmission to a request header or POST body, as query parameters are not suitable for sending credentials.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9 | [email protected] | ExploitThird Party Advisory |
| https://github.com/v2board/v2board | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-598 | Use of GET Request Method With Sensitive Query Strings | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| v2board v2board | <= 1.7.4 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | Initial Analysis | [email protected] |
| May 1, 2026 | CVE Modified | CISA-ADP |
| May 1, 2026 | New CVE Received | [email protected] |