What’s Vulnerable › Vulnerabilities

CVE-2021-40721: Adobe Connect Reflected Cross Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-15 · updated 2026-06-17
• Weakness: CWE-79

Description

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 through 11.2.3

References

• https://helpx.adobe.com/security/products/connect/apsb21-91.html
• https://helpx.adobe.com/security/products/connect/apsb21-91.html

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