CVE-2026-37504 Information disclosure in n/a
Attackers can steal server tokens from logs to impersonate proxy nodes and intercept user traffic in V2Board.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-37504?
CVE-2026-37504 is a medium-severity vulnerability in n/a, published on 1 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-598
Which versions are affected by CVE-2026-37504?
It affects 1 product.
Products include V2board V2board.
How do I fix CVE-2026-37504?
No fix has been published for CVE-2026-37504 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-37504 being exploited?
There is no known exploitation of CVE-2026-37504 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-w5vg-8gx8-5cjf.