CVE-2021-29467 Self-XSS
A self-XSS vulnerability in Wrongthink allows users to execute arbitrary JavaScript by entering scripts into the fingerprint field.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-29467?
CVE-2021-29467 is a medium-severity cross-site scripting vulnerability in birb-digital wrongthink, published on 22 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Wrongthink is an encrypted peer-to-peer chat program. A user could check their fingerprint into the service and enter a script to run arbitrary JavaScript on the site. No workarounds exist, but a patch exists in version 2.4.1.
Which versions are affected by CVE-2021-29467?
It affects 1 product.
Products include Wrongthink Project Wrongthink.
How do I fix CVE-2021-29467?
No fix has been published for CVE-2021-29467 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-2021-29467 being exploited?
There is no known exploitation of CVE-2021-29467 in the wild and no public exploit code.