CVE-2021-23856 Reflected Cross-Site-Scripting
An attacker can execute arbitrary scripts on a client's computer via a manipulated URL in the Rexroth IndraMotion web server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23856?
CVE-2021-23856 is a critical cross-site scripting vulnerability in Rexroth IndraMotion MLC L20, L40, published on 4 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The web server is vulnerable to reflected XSS and therefore an attacker might be able to execute scripts on a client’s computer by sending the client a manipulated URL.
Weakness: CWE-79
Which versions are affected by CVE-2021-23856?
It affects 2 products.
Products include Bosch Rexroth Indramotion Mlc L20 Firmware, Bosch Rexroth Indramotion Mlc L40 Firmware.
How do I fix CVE-2021-23856?
No fix has been published for CVE-2021-23856 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-2021-23856 being exploited?
There is no known exploitation of CVE-2021-23856 in the wild and no public exploit code.
Other vulnerabilities in Rexroth IndraMotion MLC L20, L40
Sources
Also known as GHSA-q4r8-4f4f-m9xf.