Cross-site scripting in fatcatapps Forms for Mailchimp by Optin Cat – Grow Your MailChimp…
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Forms for Mailchimp by Optin Cat – Grow Your MailChimp List plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form color parameters in all versions up to, and including, 2.5.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| fatcatapps | Forms for Mailchimp by Optin Cat – Grow Your MailChimp List | up to 2.5.7 | — | No fix listed | CNA |
- Forms for Mailchimp by Optin Cat – Grow Your MailChimp List Vendorfatcatapps Affected up to 2.5.7 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-7489
- 2026-10-03 Alias added: GHSA-mxpx-6xff-fqw4
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/52f9db86-7fed-4b32-8384-3ceb300f9249?source=cve
- https://plugins.trac.wordpress.org/browser/mailchimp-wp/trunk/includes/eoi-functions.php#L91
- https://plugins.trac.wordpress.org/browser/mailchimp-wp/trunk/includes/eoi-functions.php#L166
- https://plugins.trac.wordpress.org/changeset/3198558/mailchimp-wp/trunk/includes/eoi-functions.php
More fatcatapps vulnerabilities
- TI-2023-04688 Campaign Monitor Forms < 2.5.6 - Subscriber+ Arbitrary Options Update CVSS 3.1HIGH 8.1
- TI-2022-04254 Pricing Tables WordPress Plugin – Easy Pricing Tables < 3.2.3 - Contributor+ Stored XSS via Shortcode CVSS 3.1MEDIUM 5.4
- TI-2021-07202 Pixel Cat Lite < 2.6.2 - CSRF to Stored Cross-Site Scripting CVSS 3.1CRITICAL 9.0
- TI-2026-63330 WordPress Easy Pricing Tables plugin <= 4.1.2 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
- TI-2026-63302 WordPress Quiz Cat plugin <= 3.1.1 - SQL Injection vulnerability CVSS 3.1HIGH 7.6
- TI-2025-19863 WordPress Landing Page Cat plugin <= 1.7.8 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
Sources
- CVE-2024-7489 · CVE Program
- CVE-2024-7489 · NVD
- FIRST EPSS
- GHSA-mxpx-6xff-fqw4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences