Adobe Connect <= 11.0.5 Multiple Vulnerabilities (ASPB21-19)

high Nessus Plugin ID 147419
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The remote web server contains an application that is affected by multiple vulnerabilities.


The version of Adobe Connect running on the remote host is 11.0.5 or earlier. It is, therefore, affected by multiple vulnerabilities, including the following:

- Multiple reflected cross-site scripting vulnerabilities due to improper validation of user-supplied input before returning it to users. An remote attacker can exploit these, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user's browser session. (CVE-2021-21079, CVE-2021-21080, CVE-2021-21081)

- An arbitrary code execution vulnerability due to improper input validation. (CVE-2021-21085)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to Adobe Connect version 11.2 or later

See Also

Plugin Details

Severity: High

ID: 147419

File Name: adobe_connect_apsb21-19.nasl

Version: 1.5

Type: remote

Family: CGI abuses

Published: 3/10/2021

Updated: 6/11/2021

Dependencies: adobe_connect_detect.nbin

Risk Information

CVSS Score Source: CVE-2021-21085


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:adobe:connect

Required KB Items: installed_sw/Adobe Connect

Exploit Ease: No known exploits are available

Patch Publication Date: 3/9/2021

Vulnerability Publication Date: 3/9/2021

Reference Information

CVE: CVE-2021-21079, CVE-2021-21080, CVE-2021-21081, CVE-2021-21085

IAVB: 2021-B-0016-S