Is CVE-2021-26812 actively exploited?

No active exploitation of CVE-2021-26812 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-26812 be exploited remotely?

Yes. CVE-2021-26812 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-26812?

CVE-2021-26812 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2021-26812

MEDIUM

CVE-2021-26812

CWE-79Published: April 14, 2021· Updated: Jun 17, 2026

6.1

CVSS v3.1

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.

NVD Source

Technical Analysis

CVE-2021-26812 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.