CVE-2026-37504

Name: CVE-2026-37504
Creator: NVD / NIST
Published: 2026-05-01T16:16:30.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2026-37504 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.29%

20.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-598

Affected Software

Vendor	Product	Versions
V2board	V2board	<= 1.7.4

References

https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9Exploit, Third Party Advisory
https://github.com/v2board/v2boardProduct

Timeline

Published: May 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-37504?

How severe is CVE-2026-37504?

CVE-2026-37504 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-37504?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-37504?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST