Configuration takeover via unprotected administrative requests
Published Apr 30, 2026 · Updated Apr 30, 2026
CSRF in the U-SPEED N300 Router 1.0.0 web interface allows remote attackers to change configuration through an administrator's browser. The /api/setWlan and /api/telnet endpoints accept state-changing POST requests without anti-CSRF tokens or strict Origin/Referer validation, trusting the administrator's session cookie. Exploitation requires an authenticated administrator to visit an attacker-controlled page; resulting forged requests can alter wireless settings, manipulate Telnet access, or interrupt router service.
Summary
What happened
CSRF in the U-SPEED N300 Router 1.0.0 web interface allows remote attackers to change configuration through an administrator's browser. The /api/setWlan and /api/telnet endpoints accept state-changing POST requests without anti-CSRF tokens or strict Origin/Referer validation, trusting the administrator's session cookie. Exploitation requires an authenticated administrator to visit an attacker-controlled page; resulting forged requests can alter wireless settings, manipulate Telnet access, or interrupt router service.
The record
- CVE
- CVE-2026-36960
- Published
- Apr 30, 2026
- Updated
- Apr 30, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-352, T1565
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 30, 2026CVE publishedPublication date reported by the CVE source.
- Apr 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- U-SPEED N300 Router CSRF proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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