CVE-2026-27397

WordPress Really Simple Security Pro plugin <= 9.5.4.0 - Insecure Direct Object References (IDOR) vulnerability

CVSS 6.5 MEDIUMEPSS 0.2%CWE-639

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

19 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Authorization Bypass Through User-Controlled Key vulnerability in Really Simple Plugins B.V. Really Simple Security Pro allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Really Simple Security Pro: from n/a through 9.5.4.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

Really Simple Plugins B.V. · Really Simple Security Pro

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References

https://patchstack.com/database/wordpress/plugin/really-simple-ssl-pro/vulnerability/wordpress-really-simple-security-pro-plugin-9-5-3-1-insecure-direct-object-references-idor-vulnerability?_s_id=cve