CVE-2012-3040 Cross-site scripting in n/a

Medium 4.3 Published 10 Oct 2012 Updated 23 May 2025

Remote attackers can inject arbitrary web script or HTML into Siemens SIMATIC S7-1200 PLCs via a crafted URI, requiring user interaction to execute.

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-2012-3040?

CVE-2012-3040 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 Oct 2012. 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 (XSS) vulnerability in the web server on Siemens SIMATIC S7-1200 PLCs 2.x through 3.0.1 allows remote attackers to inject arbitrary web script or HTML via a crafted URI.

Weakness: CWE-79

Which versions are affected by CVE-2012-3040?

It affects 9 products.

Products include Siemens Simatic S7-1200 Cpu 1211c Firmware, Siemens Simatic S7-1200 Cpu 1212c Firmware, Siemens Simatic S7-1200 Cpu 1212fc Firmware, Siemens Simatic S7-1200 Cpu 1214 Fc Firmware, Siemens Simatic S7-1200 Cpu 1214c Firmware, Siemens Simatic S7-1200 Cpu 1215 Fc Firmware and 3 more.

How do I fix CVE-2012-3040?

No fix has been published for CVE-2012-3040 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-2012-3040 being exploited?

There is no known exploitation of CVE-2012-3040 in the wild and no public exploit code.

Sources

Also known as GHSA-53gc-p44w-x4v4.