Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) < 9.8.0 - Authenticated (Custom Role+) Remote Code Execution
| CVE | CVE-2026-81766 |
|---|---|
| CVSS | 8.8 (High) |
| Publicly Published | August 31, 2026 |
| Last Updated | September 1, 2026 |
| Researcher |
Charles Vosburgh
|
Description
The Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) plugin for WordPress is vulnerable to Remote Code Execution in all versions up to 9.8.0. This is due to insufficient validation of user supplied input before it is executed. This makes it possible for authenticated attackers, with custom role-level access and above, to execute arbitrary code on the server.
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Vulnerability Details for Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)
| Software Type | Plugin |
|---|---|
| Software Slug | really-simple-ssl (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 9.8.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)
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