Simple Payment exposes a high-integrity operation without authentication
Simple Payment through 2.5.2 does not enforce authorization on an operation reachable without a WordPress account. An unauthenticated attacker can invoke that operation and make a high-impact change to protected payment or plugin state.
- Component
- Simple Payment
- Plugin slug
simple-payment- Affected
- n/a through 2.5.2
- Safe version
2.5.3- Published
- Aug 28, 2026
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Aug 28, 2026 and is one of 7 known issues for this plugin.
Update, patch or deactivate.
Update Simple Payment to 2.5.3 or later and reconcile payment and plugin activity for unauthorized state changes.
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 Broken Access Control in Simple Payment <= 2.5.2 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N