Missing authorization in FuseWP – WordPress User Sync to Email List & Marketing Automation
Priority LOW 19CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-862.
Summary
The FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_changes() function in all versions up to, and including, 1.1.23.0. This makes it possible for unauthenticated attackers to add and edit sync rules.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00208 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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-2025-11975
- 2026-10-03 Alias added: GHSA-383x-8v44-m82q
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-2025-10980 Cross-site request forgery in FuseWP – WordPress User Sync to Email List & Marketing… CVSS 3.1MEDIUM 4.3
Sources
- CVE-2025-11975 · CVE Program
- CVE-2025-11975 · NVD
- FIRST EPSS
- GHSA-383x-8v44-m82q · 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