Cross-site request forgery in FuseWP – WordPress User Sync to Email List & Marketing…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
The FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.23.0. This is due to missing or incorrect nonce validation on the save_changes function. This makes it possible for unauthenticated attackers to add or edit sync rules via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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 |
|---|---|---|---|---|---|
| fusewp | FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) | up to 1.1.23.0 | — | No fix listed | CNA |
- FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) Vendorfusewp Affected up to 1.1.23.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11976
- 2026-10-03 Alias added: GHSA-p4jw-m7hw-hjrg
References
More fusewp vulnerabilities
- TI-2026-04893 FuseWP <= 1.1.24.2 - Cross-Site Request Forgery to Sync Rule Status Toggle CVSS 3.1MEDIUM 4.3
- TI-2025-10979 Missing authorization in FuseWP – WordPress User Sync to Email List & Marketing Automation CVSS 3.1MEDIUM 4.3
Sources
- CVE-2025-11976 · CVE Program
- CVE-2025-11976 · NVD
- FIRST EPSS
- GHSA-p4jw-m7hw-hjrg · 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