CVE-2022-31064 Cross site scripting in username that will trigger by sending chat
Attackers can execute arbitrary JavaScript in victims' browsers via malicious usernames in private chats, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-31064?
CVE-2022-31064 is a medium-severity cross-site scripting vulnerability in bigbluebutton, published on 27 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
BigBlueButton is an open source web conferencing system. Users in meetings with private chat enabled are vulnerable to a cross site scripting attack in affected versions. The attack occurs when the attacker (with xss in the name) starts a chat. in the victim's client the JavaScript will be executed. This issue has been addressed in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.
Weakness: CWE-79
Which versions are affected by CVE-2022-31064?
It affects 1 product.
Products include Bigbluebutton Bigbluebutton.
How do I fix CVE-2022-31064?
No fix has been published for CVE-2022-31064 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-2022-31064 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31064 exists.
Other vulnerabilities in bigbluebutton
Sources
Also known as GHSA-hwv2-5pf5-hr87.