CVE-2021-23848 Reflected XSS in URL handler

High 8.3 Published 9 Jun 2021 Updated 16 Sep 2024

An attacker can execute arbitrary JavaScript in a user's browser via a crafted link, potentially leading to session hijacking or data theft.

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-2021-23848?

CVE-2021-23848 is a high-severity cross-site scripting vulnerability in Bosch CPP Firmware, published on 9 Jun 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

An error in the URL handler Bosch IP cameras may lead to a reflected cross site scripting (XSS) in the web-based interface. An attacker with knowledge of the camera address can send a crafted link to a user, which will execute javascript code in the context of the user.

Weakness: CWE-79

Which versions are affected by CVE-2021-23848?

It affects 5 products.

Products include Bosch Cpp13 Firmware, Bosch Cpp4 Firmware, Bosch Cpp6 Firmware, Bosch Cpp7.3 Firmware, Bosch Cpp7 Firmware.

How do I fix CVE-2021-23848?

No fix has been published for CVE-2021-23848 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-2021-23848 being exploited?

There is no known exploitation of CVE-2021-23848 in the wild and no public exploit code.

Sources

Also known as GHSA-3h4x-jrvr-p38w.