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GitLab 8.4 < 14.1.7 / 14.2 < 14.2.5 / 14.3 < 14.3.1 (CVE-2021-39887)

medium Nessus Plugin ID 187472

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Synopsis

The version of GitLab installed on the remote host is affected by a vulnerability.

Description

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

 - A stored Cross-Site Scripting vulnerability in the GitLab Flavored Markdown in GitLab CE/EE version 8.4 and above allowed an attacker to execute arbitrary JavaScript code on the victim's behalf.
 (CVE-2021-39887)

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 GitLab version 14.1.7, 14.2.5, 14.3.1 or later.

See Also

http://www.nessus.org/u?54becce3

Plugin Details

Severity: Medium

ID: 187472

File Name: gitlab_cve-2021-39887.nasl

Version: 1.0

Type: combined

Agent: unix

Family: CGI abuses

Published: 1/2/2024

Updated: 1/2/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2021-39887

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2021

Vulnerability Publication Date: 9/30/2021

Reference Information

CVE: CVE-2021-39887