Medium severity · published Aug 30, 2021
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 and triggered when viewing a contact's details page then…
6.1
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mautic · Acquia
before 3.3.4; 4.0.0; 4.0.0; 4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27911
Patch
https://github.com/mautic/mautic/security/advisories/GHSA-72hm-fx78-xwhc
More from Mautic
9.9
CVE-2024-47051
Remote Code Execution & File Deletion in Asset Uploads
9.6
CVE-2020-35125
A cross-site scripting (XSS) vulnerability in the forms component of Mautic before 3.2.4 allows remote attackers to inject executable JavaScript via mautic[return] (a different…
9.6
CVE-2020-35124
A cross-site scripting (XSS) vulnerability in the assets component of Mautic before 3.2.4 allows remote attackers to inject executable JavaScript through the Referer header of…
9.1
CVE-2022-25769
Improper regex in htaccess file
9.0
CVE-2021-27915
XSS Cross-site Scripting Stored (XSS) - Description field