CVE-2021-26812 Cross-site scripting in n/a
Attackers can inject JavaScript into Moodle via the Jitsi Meet plugin, potentially executing code in victim browsers.
- 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-2021-26812?
CVE-2021-26812 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Apr 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
Cross Site Scripting (XSS) in the Jitsi Meet 2.7 through 2.8.3 plugin for Moodle via the "sessionpriv.php" module. This allows attackers to craft a malicious URL, which when clicked on by users, can inject javascript code to be run by the application.
Weakness: CWE-79
Which versions are affected by CVE-2021-26812?
It affects 1 product.
Products include Jitsi Meet.
How do I fix CVE-2021-26812?
No fix has been published for CVE-2021-26812 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-2021-26812 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-26812 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in n/a
Sources
Also known as GHSA-h3rc-fmj6-ghxh.