CVE-2021-34223 Cross-site scripting in n/a
Attackers can execute arbitrary JavaScript in TOTOLINK A3002R routers via the URL Address field in urlfilter.htm.
- 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-2021-34223?
CVE-2021-34223 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 urlfilter.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "URL Address" field.
Weakness: CWE-79
Which versions are affected by CVE-2021-34223?
It affects 1 product.
Products include Totolink A3002r Firmware.
How do I fix CVE-2021-34223?
No fix has been published for CVE-2021-34223 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-2021-34223 being exploited?
There is no known exploitation of CVE-2021-34223 in the wild and no public exploit code.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-7q7g-mcjq-v4j2.