CVE-2021-27911 : Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack through the contact's first or last name an

Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack through the contact's first or last name and triggered when viewing a contact's details page then clicking on the action drop down and hovering over the Campaigns button. Contact first and last name can be populated from different sources such as UI, API, 3rd party syncing, forms, etc.

Published 2021-08-30 16:15:07

Updated 2021-09-10 15:04:01

Source Mautic

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2021-27911

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 33 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-27911

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
8.3	HIGH	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H	1.6	6.0	Mautic
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-27911

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by:

nvd@nist.gov (Primary)
security@mautic.org (Secondary)

Products affected by CVE-2021-27911

Acquia » Mautic
Versions before (<) 3.3.4
cpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*
Matching versions
Acquia » Mautic » Version: 4.0.0 Update Alpha1
cpe:2.3:a:acquia:mautic:4.0.0:alpha1:*:*:*:*:*:*
Matching versions
Acquia » Mautic » Version: 4.0.0 Update Beta
cpe:2.3:a:acquia:mautic:4.0.0:beta:*:*:*:*:*:*
Matching versions
Acquia » Mautic » Version: 4.0.0 Update RC
cpe:2.3:a:acquia:mautic:4.0.0:rc:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2021-27911

Exploit prediction scoring system (EPSS) score for CVE-2021-27911

CVSS scores for CVE-2021-27911

CWE ids for CVE-2021-27911

References for CVE-2021-27911

Products affected by CVE-2021-27911