Contact Form by Supsystic: Privilege escalation or authentication bypass
Contact Form by Supsystic is affected by privilege escalation or authentication bypass. The vulnerable path is reachable without authentication. A successful request can grant permissions or access that the caller should not possess. The published affected range is n/a to < 1.10.0.
- Component
- Contact Form by Supsystic
- Plugin slug
contact-form-by-supsystic- Affected
- n/a to < 1.10.0
- Safe version
1.10.0- Published
- Aug 18, 2026
This CVE was published Aug 18, 2026 and is one of 11 known issues for this plugin.
Update, patch or deactivate.
Update Contact Form by Supsystic to 1.10.0 or later, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Unauthenticated Bypass Vulnerability in Contact Form by Supsystic < 1.10.0 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N