Atlassian Confluence < 6.13.23 / 6.14 < 7.4.11 / 7.5 < 7.11.6 / 7.12 < 7.12.5 Webwork OGNL Injection (CONFSERVER-67940)

critical Nessus Plugin ID 152864


A web application running on the remote host is affected by an OGNL injection vulnerability


According to its self-reported version number, the Atlassian Confluence application running on the remote host is prior to 6.13.23, 6.14.x prior to 7.4.11, 7.5.x prior to 7.11.6 or 7.12.x prior to 7.12.5. It is, therefore, affected by an OGNL injection vulnerability that would allow an authenticated user, and in some instances an unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance.

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


Upgrade to Atlassian Confluence version 6.13.23, 7.4.11, 7.11.6, 7.12.5 or later.

See Also

Plugin Details

Severity: Critical

ID: 152864

File Name: confluence_confserver-67940.nasl

Version: 1.8

Type: remote

Family: CGI abuses

Published: 8/26/2021

Updated: 4/11/2022

Configuration: Enable thorough checks

Risk Information


Risk Factor: Critical

Score: 9.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS Score Source: CVE-2021-26084


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

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

Vulnerability Information

CPE: cpe:/a:atlassian:confluence

Required KB Items: installed_sw/confluence

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/25/2021

Vulnerability Publication Date: 8/25/2021

CISA Known Exploited Dates: 11/17/2021

Exploitable With

Metasploit (Atlassian Confluence WebWork OGNL Injection)

Reference Information

CVE: CVE-2021-26084

IAVA: 2021-A-0397