CVE-2021-43549 OSIsoft PI Web API
An authenticated attacker can exploit Cross-Site Scripting in OSIsoft PI Web API to redirect users and steal sensitive information.
- 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-2021-43549?
CVE-2021-43549 is a medium-severity cross-site scripting vulnerability in OSIsoft PI Web API, published on 18 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.
Weakness: CWE-79
Which versions are affected by CVE-2021-43549?
It affects 1 product.
Products include Osisoft Pi Web Api.
How do I fix CVE-2021-43549?
No fix has been published for CVE-2021-43549 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-2021-43549 being exploited?
There is no known exploitation of CVE-2021-43549 in the wild and no public exploit code.
Other vulnerabilities in OSIsoft PI Web API
Sources
Also known as GHSA-pj89-mr75-5fmf.