CVE-2026-21331

Published: Apr 14, 2026Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: psirt@adobe.com (Secondary)

Description

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.

Affected (3)

Products: Adobe: Connect, Connect Desktop Application

2 products

Connect Desktop Application

Configuration A

1 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Adobe Connect	Before 12.11

Running on/with	Platform Versions
Apple Macos	All versions
Microsoft Windows	All versions

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Connect Desktop Application	Up to 2025.3
Adobe Connect Desktop Application	Before 2025.9.15

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (1)

https://helpx.adobe.com/security/products/connect/apsb26-37.html

Source: psirt@adobe.com

Vendor Advisory

Timeline

No history available yet.