CVE-2021-36833
MEDIUM
Published May 20, 20224y ago · Modified Jun 17, 20261w ago
4.8 CVSS 3.1
Published May 20, 2022 4y ago
Last Modified Jun 17, 2026 1w ago
Description
Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| ibericode | mailchimp_for_wordpress | * | ≤4.8.6 |
References 2
- patchstack.com https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability
- wordpress.org https://wordpress.org/plugins/mailchimp-for-wp/#developers
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.