CVE-2026-24435 Tenda W30E V2 Permissive CORS Allows Cross-origin Data Access

High 7.1 Published 26 Jan 2026 Updated 14 May 2026

Insecure CORS policy on Tenda W30E V2 allows attackers to access authenticated administrative data via cross-origin requests.

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-2026-24435?

CVE-2026-24435 is a high-severity vulnerability in Tenda W30e Firmware, published on 26 Jan 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

Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) implement an insecure Cross-Origin Resource Sharing (CORS) policy on authenticated administrative endpoints. The device sets Access-Control-Allow-Origin: * in combination with Access-Control-Allow-Credentials: true, allowing attacker-controlled origins to issue credentialed cross-origin requests.

Weakness: CWE-942

Which versions are affected by CVE-2026-24435?

It affects 1 product.

Products include Tenda W30e Firmware.

How do I fix CVE-2026-24435?

No fix has been published for CVE-2026-24435 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-24435 being exploited?

There is no known exploitation of CVE-2026-24435 in the wild and no public exploit code.

All Tenda W30e Firmware vulnerabilities

Sources

Also known as GHSA-9423-9282-jq44.