CVE-2026-31849— Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+
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I. Basic Information for CVE-2026-31849
Vulnerability Information
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Vulnerability Title
Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨站请求伪造(CSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nexxt Solutions Nebula 300+ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nexxt Solutions Nebula 300+是美国Nexxt Solutions公司的一款无线路由器。 Nexxt Solutions Nebula 300+ 12.01.01.37及之前版本存在安全漏洞，该漏洞源于状态更改管理端点缺少跨站请求伪造保护，可能导致修改设备设置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Nexxt Solutions | Nebula 300+ | <= 12.01.01.37 | - |
II. Public POCs for CVE-2026-31849
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Nexxt Solutions · 2026-03-23 · 6 CVEs total
| CVE-2026-31846 | 6.5 MEDIUM | Unauthenticated Credential Disclosure via /goform/ate in Nexxt Nebula 300+ |
| CVE-2026-31847 | Hidden Functionality Enables Remote Telnet Activation via /goform/setSysTools in Nexxt Neb | |
| CVE-2026-31850 | Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+ | |
| CVE-2026-31848 | Reversible ecos_pw Cookie Allows Authentication Bypass in Nexxt Nebula 300+ | |
| CVE-2026-31851 | Lack of Rate Limiting Enables Brute-Force Attacks in Nexxt Nebula 300+ |
IV. Related Vulnerabilities
Same product: Nebula 300+
Same vendor: Nexxt Solutions
- CVE-2026-31851
Lack of Rate Limiting Enables Brute-Force Attacks in Nexxt N - CVE-2026-31850
Plaintext Storage of Credentials in Configuration Backup in - CVE-2026-31848
Reversible ecos_pw Cookie Allows Authentication Bypass in Ne - CVE-2026-31847
Hidden Functionality Enables Remote Telnet Activation via /g - CVE-2026-31846
Unauthenticated Credential Disclosure via /goform/ate in Nex
Same weakness: CWE-352
- CVE-2021-47953
OpenCart 3.0.3.7 Cross-Site Request Forgery via account/pass - CVE-2021-47946
OpenCart 3.0.36 Account Takeover via Cross Site Request Forg - CVE-2022-50955
WordPress Plugin Curtain 1.0.2 Cross-site Request Forgery - CVE-2026-8194
osTicket Dispatcher class.dispatcher.php cross-site request - CVE-2026-42286
Emlog: Cross-Site Request Forgery in Admin Functions
V. Comments for CVE-2026-31849
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