CVE-2021-27911: XSS vulnerability on contacts view
First published: Mon Aug 30 2021(Updated: )
### Impact 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. ### Patches Upgrade to 3.3.4 or 4.0.0 ### Workarounds No ### References https://github.com/mautic/mautic/releases/tag/3.3.4 https://github.com/mautic/mautic/releases/tag/4.0.0 ### For more information If you have any questions or comments about this advisory: * Email us at [security@mautic.org](mailto:security@mautic.org)
Credit: security@mautic.org security@mautic.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/mautic/core | <4.0.0>=3.3.0<3.3.4>=3.2.0<3.3.0>=3.1.0<3.2.0>=3.0.0<3.1.0 | |
| Acquia Mautic | <3.3.4 | |
| Acquia Mautic | =4.0.0-alpha1 | |
| Acquia Mautic | =4.0.0-beta | |
| Acquia Mautic | =4.0.0-rc | |
| composer/mautic/core | >=4.0.0-alpha1<4.0.0 | 4.0.0 |
| composer/mautic/core | <3.3.4 | 3.3.4 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-27911?
CVE-2021-27911 is an XSS vulnerability in Mautic versions before 3.3.4/4.0.0 that allows an inline JS XSS attack through the contact's first or last name.
How severe is CVE-2021-27911?
CVE-2021-27911 has a severity level of 6.1 (high).
How can I fix CVE-2021-27911?
To fix CVE-2021-27911, update Mautic to version 3.3.4 or 4.0.0.
What is the CWE of CVE-2021-27911?
The CWE of CVE-2021-27911 is CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')).
Where can I find more information about CVE-2021-27911?
More information about CVE-2021-27911 can be found at the following reference: [link](https://github.com/mautic/mautic/security/advisories/GHSA-72hm-fx78-xwhc).
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