CVE-2025-4852 TOTOLINK A3002R VPN Page cross site scripting
Remote attackers can inject malicious scripts into the VPN page Comment field of TOTOLINK A3002R routers, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-4852?
CVE-2025-4852 is a medium-severity cross-site scripting vulnerability in Totolink A3002r Firmware, published on 18 May 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A vulnerability, which was classified as problematic, has been found in TOTOLINK A3002R 2.1.1-B20230720.1011. This issue affects some unknown processing of the component VPN Page. The manipulation of the argument Comment leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4852?
It affects 1 product.
Products include Totolink A3002r Firmware.
How do I fix CVE-2025-4852?
No fix has been published for CVE-2025-4852 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-2025-4852 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4852 exists.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-j897-wcf5-3xph.