Quick answers
- Is CVE-2026-90604 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-90604 being exploited in the wild.
- How severe is CVE-2026-90604?
- Low severity, with a CVSS score of 3.5, published 14 September 2026.
- Which products and versions are affected?
- TOTOLINK A3002MU Hh-B20211125.1046.
- Is there a fix for CVE-2026-90604?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-90604 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-90604?
- Check whether you run TOTOLINK A3002MU at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A reflected XSS vulnerability exists in multiple pages of the Totolink A3002MU web interface (portfw.htm, reboot.htm, arptbl.htm, etc.). The vulnerability stems from insufficient validation and escaping of URL fragment content (#), which is directly passed to eval() function execution. The attack requires the victim to be already authenticated to the router's management interface and to click a malicious link. An attacker can craft URLs containing arbitrary JavaScript that will execute in the authenticated context, enabling session token theft and other actions. The vulnerability affects firmware version Hh-B20211125.1046 and has public exploit code available.
Affected products
- Totolink A3002MU Hh-B20211125.1046
Timeline
- 2026-09-14: disclosed
- other: Public exploit code available