CVE-2021-40721: Adobe Connect

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

Adobe Connect version 11.2.3 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. If an attacker is able to convince a victim to visit a URL referencing a vulnerable page, malicious JavaScript content may be executed within the context of the victim's browser.

Affected products

• Adobe Connect: from 11.0, up to and including 11.2.3

Published 2021-10-15. Last modified 2026-06-17.