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Atlassian Confluence 6.14.x < 6.14.3 / 6.15.x < 6.15.5 stored cross-site-scripting (SXSS) Vulnerability

medium Nessus Plugin ID 136178

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Synopsis

A web application running on the remote host is affected by a local file disclosure vulnerability

Description

According to its self-reported version number, the Atlassian Confluence application running on the remote host is 6.14.x prior to 6.14.3, or 6.15.x prior to 6.15.5. It is, therefore, affected by a stored cross-site-scripting (SXSS) vulnerability. due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, via a malicious attachment with a modified `mimeType` parameter, to execute arbitrary script code in a user's browser session.

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 6.14.3, 6.15.5 or later.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2019-20102

Plugin Details

Severity: Medium

ID: 136178

File Name: confluence_6_15_5.nasl

Version: 1.5

Type: remote

Family: CGI abuses

Published: 4/30/2020

Updated: 6/5/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-20102

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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/confluence

Excluded KB Items: Settings/disable_cgi_scanning

Exploit Ease: No known exploits are available

Patch Publication Date: 4/22/2020

Vulnerability Publication Date: 4/22/2020

Reference Information

CVE: CVE-2019-20102

IAVA: 2020-A-0183-S