Adobe Connect <= 12.11 Multiple Vulnerabilities (APSB26-191)

critical Nessus Plugin ID 378192

Synopsis

The remote web server contains an application that is affected by multiple vulnerabilities.

Description

The version of Adobe Connect installed on the remote host is prior to 12.12. It is, therefore, affected by multiple vulnerabilities as referenced in the apsb26-191 advisory.

- Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) potentially leading to Arbitrary code execution (CVE-2026-121354, CVE-2026-121906)

- Cross-site Scripting (Stored XSS) (CWE-79) potentially leading to Privilege escalation (CVE-2026-121904, CVE-2026-122102)

- Incorrect Authorization (CWE-863) potentially leading to Privilege escalation (CVE-2026-121352, CVE-2026-121355, CVE-2026-121913)

- Cross-site Scripting (XSS) (CWE-79) potentially leading to Arbitrary code execution (CVE-2026-121910)

- Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (CWE-89) potentially leading to Arbitrary code execution (CVE-2026-121894, CVE-2026-121896, CVE-2026-121898, CVE-2026-121900, CVE-2026-121902, CVE-2026-121908)

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

Solution

Upgrade to Adobe Connect version 12.12 or later.

See Also

https://www.adobe.com/trust/security/products/connect/apsb26-191.html

Plugin Details

Severity: Critical

ID: 378192

File Name: adobe_connect_apsb26-191.nasl

Version: 1.1

Type: Remote

Agent: windows, macosx, unix

Family: CGI abuses

Published: 11/10/2026

Updated: 11/10/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.3

Percentile: 95.57

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-121354

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-121904

Vulnerability Information

CPE: cpe:/a:adobe:connect

Required KB Items: installed_sw/Adobe Connect

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 11/10/2026

Reference Information

CVE: CVE-2026-121349, CVE-2026-121350, CVE-2026-121351, CVE-2026-121352, CVE-2026-121353, CVE-2026-121354, CVE-2026-121355, CVE-2026-121356, CVE-2026-121887, CVE-2026-121889, CVE-2026-121890, CVE-2026-121892, CVE-2026-121894, CVE-2026-121896, CVE-2026-121898, CVE-2026-121900, CVE-2026-121902, CVE-2026-121904, CVE-2026-121906, CVE-2026-121908, CVE-2026-121910, CVE-2026-121912, CVE-2026-121913, CVE-2026-122102

CWE: 22, 611, 79, 863, 89, 918, 93, 94