Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-4244

22
FAUCET Score

CVE-2021-4244 is a cross-site scripting (XSS) vulnerability affecting the yikes-inc-easy-mailchimp-extender Plugin up to version 6.8.5, specifically within the admin/partials/ajax/add_field_to_form.php file. Attackers can exploit this by manipulating arguments like field_name or list_id. Rated as Medium severity (CVSS 6.1), this vulnerability has a low attack complexity and can be exploited remotely without authentication, potentially leading to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. Users are advised to upgrade to version 6.8.6 to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.8.6CPE matchmatch criteria
cpe:2.3:a:yikesplugins:easy_forms_for_mailchimp:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

2.6LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 45th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: yikesinc/yikes-inc-easy-mailchimp-extenderFixed in: 6.8.6
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-837v-6vgx-jqccmedium

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

Dec 12, 2022

References

github.com / EvanHerman/yikes-inc-easy-mailchimp-extender/commit/3662c6593aa1bb4286781214891d26de2e947695
PatchThird Party Advisory
github.com / EvanHerman/yikes-inc-easy-mailchimp-extender/pull/889
PatchThird Party Advisory
github.com / EvanHerman/yikes-inc-easy-mailchimp-extender/releases/tag/6.8.6
Release NotesThird Party Advisory
vuldb.com
Third Party Advisory