Detections
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Atlassian Confluence 9.2.4 < 9.2.6 / 9.4.x < 9.5.2 (CONFSERVER-100164)

high Nessus Plugin ID 242980

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Synopsis

The remote Atlassian Confluence host is missing a security update.

Description

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-100164 advisory.

 - A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Discovered by the Apache HttpClient team. Fixed in the 5.4.3 release (CVE-2025-27820)

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

Solution

Upgrade to Atlassian Confluence version 9.2.6, 9.5.2 or later.

See Also

https://jira.atlassian.com/browse/CONFSERVER-100164

Plugin Details

Severity: High

ID: 242980

File Name: confluence_confserver-100164.nasl

Version: 1.1

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 7/29/2025

Updated: 7/29/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-27820

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:atlassian:confluence

Required KB Items: installed_sw/Atlassian Confluence

Exploit Ease: No known exploits are available

Patch Publication Date: 7/2/2025

Vulnerability Publication Date: 4/24/2025

Reference Information

CVE: CVE-2025-27820