MailChimp for Wordpress <= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
Published Sep 21, 2024
5.5
MEDIUMCVSS 3.1
EPSS 0.53%
Description
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected products
-
- Version 0StatusaffectedConstraints<=4.9.16
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Dvankooten | MC4WP: Mailchimp for WordPress | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 23, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.53% (0.00529) | 42.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.54% (0.00541) | 40.96th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.16% (0.00162) | 33.77th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.52% (0.07520) | 86.05th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.16% (0.00162) | 33.84th | v4 (v2025.03.14) |
| Mar 23, 2025 | 1.61% (0.01608) | 78.04th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.13% (0.00126) | 29.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00110) | 45.93th | v3 (v2023.03.01) |
| Sep 22, 2024 | 0.10% (0.00100) | 42.02th | v3 (v2023.03.01) |
References (5)
- https://github.com/ibericode/mailchimp-for-wordpress/blob/main/includes/views/parts/lists-overview-details.php Product
- https://github.com/ibericode/mailchimp-for-wordpress/commit/60c6bfc260a7974f791af1d4ad4a032a3e0bdd3c Patch
- https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/trunk/includes/views/parts/lists-overview-details.php Product
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3153075%40mailchimp-for-wp%2Ftrunk&old=3149806%40mailchimp-for-wp%2Ftrunk&sfp_email=&sfph_mail= Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/aa464547-0380-4b91-a5ea-0cd9a66da7a7?source=cve Third Party Advisory
Change history (0)
No recorded changes yet.