What’s Vulnerable › Vulnerabilities
CVE-2026-21331: Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-14 · updated 2026-10-26
- Weakness: CWE-79
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 products
- Adobe Connect: before 12.11 — fixed in 12.11
- Adobe Connect Desktop Application: through 2025.3; before 2025.9.15 — fixed in 2025.9.15
How to fix
Upgrade to a fixed version: Adobe Connect 12.11; Adobe Connect Desktop Application 2025.9.15. Check the vendor advisory for mitigations.
References
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