Reflected Cross-Site Scripting Vulnerability in Adobe Connect
CVE-2026-21331

6.1MEDIUM

Key Information:

Vendor

Adobe
Status
Adobe Connect
Adobe Connect Desktop Application
Vendor
CVE Published:
14 April 2026

What is CVE-2026-21331?

Adobe Connect is affected by a reflected Cross-Site Scripting (XSS) vulnerability in versions 2025.3, 12.10, and earlier. This vulnerability allows attackers to exploit the system by convincing users to visit a crafted URL. If successful, malicious JavaScript can be executed in the context of the victim's browser, potentially leading to unauthorized actions and data exposure.

Affected Version(s)

Adobe Connect 0 <= 12.10

Adobe Connect Desktop Application 0 <= 2025.3

Adobe Connect 12.11

References

https://helpx.adobe.com/security/products/connect/apsb26-...
vendor-advisory

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.