CVE-2021-34207 Cross-site scripting in n/a
Attackers can execute arbitrary JavaScript in TOTOLINK A3002R routers via cross-site scripting in the DDNS configuration fields.
- 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-2021-34207?
CVE-2021-34207 is a medium-severity cross-site scripting vulnerability in Totolink A3002r Firmware, published on 20 Aug 2021. 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
Cross-site scripting in ddns.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "Domain Name" field, "Server Address" field, "User Name/Email", or "Password/Key" field.
Weakness: CWE-79
Which versions are affected by CVE-2021-34207?
It affects 1 product.
Products include Totolink A3002r Firmware.
How do I fix CVE-2021-34207?
No fix has been published for CVE-2021-34207 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-2021-34207 being exploited?
There is no known exploitation of CVE-2021-34207 in the wild and no public exploit code.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-4484-7jwf-xv44.