CVE-2021-4244

yikes-inc-easy-mailchimp-extender Plugin add_field_to_form.php cross site scripting

2.6 LowFix available

A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 is able to address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215307.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.59%Down 0.4 points since Dec 13, 2022

What each source reports

CVE List Score used 2.6

yikes-inc-easy-mailchimp-extender Plugin add_field_to_form.php cross site scripting

Record: CVE-2021-4244
CVSS 3.1: 2.6 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-707
Updated: 2026-11-02

EUVDEUVD-2022-7558 2.6

Record: EUVD-2022-7558
CVSS 3.1: 2.6 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-837v-6vgx-jqcc 6.1

yikes-inc-easy-mailchimp-extender Cross-site Scripting vulnerability

A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 can address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215307.

Record: GHSA-837v-6vgx-jqcc
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 2.6

Record: CVE-2021-4244
CVSS 3.1: 2.6 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-707, CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2021-4244
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-837v-6vgx-jqcc 6.1

yikes-inc-easy-mailchimp-extender Cross-site Scripting vulnerability

A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 can address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215307.

Record: GHSA-837v-6vgx-jqcc
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`yikesinc/yikes-inc-easy-mailchimp-extender` Packagist	before 6.8.6	6.8.6
`yikesinc/yikes-inc-easy-mailchimp-extender` Packagist	before 6.8.6, plus listed versions 5.15.1.0.15.1.15.4.36.0.0-rc1.0 Show 32 moreShow less 6.0.2.26.0.2.46.0.3.26.0.3.36.0.3.66.0.3.76.0.3.86.0.3.96.0.5.36.6.06.6.16.6.26.6.36.6.46.8.06.8.16.8.26.8.36.8.46.8.5v6.0.1v6.0.3v6.0.5v6.1v6.1.1v6.1.2v6.1.3v6.1.4v6.2.0v6.2.1v6.5.5v6.7.0	6.8.6

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-4244 is a low vulnerability (CVSS 2.6) in Unspecified Yikes-inc-easy-mailchimp-extender Plugin, published December 12, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. Fixed in yikesinc/yikes-inc-easy-mailchimp-extender 6.8.6.