CVE-2020-25902 Cross-site scripting in n/a
Cross-site scripting in Blackboard Collaborate Ultra allows attackers to steal user cookies, potentially leading to account takeover.
- 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-2020-25902?
CVE-2020-25902 is a medium-severity cross-site scripting vulnerability in n/a, published on 2 Mar 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
Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research
Weakness: CWE-79
Which versions are affected by CVE-2020-25902?
It affects 1 product.
Products include Blackboard Collaborate Ultra.
How do I fix CVE-2020-25902?
No fix has been published for CVE-2020-25902 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-2020-25902 being exploited?
There is no known exploitation of CVE-2020-25902 in the wild and no public exploit code.
Sources
Also known as GHSA-9p36-3r73-mx7q.