CVE-2025-27574 Cross-site scripting in HGW-BL1500HM
Cross-site scripting in USB file sharing allows arbitrary script execution on users' browsers accessing the LAN configuration page.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-27574?
CVE-2025-27574 is a low-severity cross-site scripting vulnerability in KDDI CORPORATION HGW-BL1500HM, published on 28 Mar 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting vulnerability exists in the USB storage file-sharing function of HGW-BL1500HM Ver 002.002.003 and earlier. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who is using the configuration page or functions accessible only from the LAN side of the product.
Weakness: CWE-79
Which versions are affected by CVE-2025-27574?
How do I fix CVE-2025-27574?
No fix has been published for CVE-2025-27574 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-2025-27574 being exploited?
There is no known exploitation of CVE-2025-27574 in the wild and no public exploit code.
Sources
Also known as GHSA-prjg-m4m7-6g42.