CVE-2026-90604 Totolink A3002MU Anchor Tag cross site scripting
Remote attackers can execute arbitrary scripts via the Anchor Tag Handler in Totolink A3002MU routers, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90604?
CVE-2026-90604 is a medium-severity cross-site scripting vulnerability in Totolink A3002MU, published on 13 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A security flaw has been discovered in Totolink A3002MU Hh-B20211125.1046. This affects an unknown part of the component Anchor Tag Handler. Performing a manipulation results in cross site scripting. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-90604?
How do I fix CVE-2026-90604?
No fix has been published for CVE-2026-90604 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-90604 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90604 exists.
Sources
Also known as GHSA-mxm9-vwr5-58fg.