What is CVE-2021-40721?

CVE-2021-40721 is a medium-severity vulnerability in Adobe Connect, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-15.

How severe is CVE-2021-40721?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Adobe Connect

CVE-2021-40721

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (58.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Adobe Connect — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@adobe.com (Patch, x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40721?: CVE-2021-40721 is a medium-severity vulnerability in Adobe Connect, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-15.
How severe is CVE-2021-40721?: Medium severity. CVSS v3 base score is 6.1 out of 10.