Vulnerability · Published Mar 23, 2026 · Assigned by TuranSec

CVE-2026-31849Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+

High 7.2

In plain English

A high-severity cross-site request forgery in Nebula 300+ from Nexxt Solutions. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 4.0)7.2High

Exploit odds (30 days)0.1%top 98.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 does not implement CSRF protections on state-changing endpoints such as /goform/setSysTools and other administrative interfaces. As a result, an attacker can craft malicious web requests that are executed in the context of an authenticated administrator’s browser, leading to unauthorized configuration changes, including enabling services or modifying system settings.

Affected products (as reported)

Vendor	Product	Versions
Nexxt Solutions	Nebula 300+	<= 12.01.01.37

Weakness: CWE-352 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

References

Official product page third-party-advisory
Firmware download third-party-advisory