CVE-2026-21331: Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability…
CVE-2026-21331 · Severity: medium · CVSS 6.1 · Published 2026-04-14
Adobe Connect versions 2025.3, 12.10 and earlier are 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. Scope is changed.
No. Junglewise Threat Intelligence has no report of CVE-2026-21331 being exploited in the wild.
How severe is CVE-2026-21331?
Medium severity, with a CVSS score of 6.1, published 14 April 2026.
Which products and versions are affected?
Adobe Connect, Adobe Connect Desktop Application, Apple macOS, Microsoft Windows. The advisory does not name versions.
Is there a fix for CVE-2026-21331?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-21331?
Check whether you run Adobe Connect, Adobe Connect Desktop Application, Apple macOS or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.