CVE-2021-27909

Description

### Impact For Mautic versions prior to 3.3.4, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, "bundle," in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized. ### 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)

How to fix CVE-2021-27909

To remediate CVE-2021-27909, upgrade the affected package to a fixed version below.

• —upgrade to 3.3.4 or later

Is CVE-2021-27909 being exploited?

Moderate — EPSS is 18.7%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (1)

• from 0, < 3.3.4

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-27909
• PATCHgithub.com/mautic/mautic
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2021-27909.yaml
• WEBgithub.com/mautic/mautic/commit/942cb6992df619fdf1c181bfad9e25d5d4178b6f