WordPress Really Simple Security Pro plugin <= 9.5.4.0 - Insecure Direct Object References (IDOR) vulnerability
Priority LOW 28CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00228 13th 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 |
|---|---|---|---|---|---|
| Really Simple Plugins B.V. | Really Simple Security Pro | up to 9.5.4.0 | — | No fix listed | CNA |
- Really Simple Security Pro VendorReally Simple Plugins B.V. Affected up to 9.5.4.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-27397
- 2026-10-03 Alias added: GHSA-6q79-hwrv-jc95
More Really Simple Plugins B.V. vulnerabilities
- TI-2026-36225 WordPress Really Simple SSL plugin <= 9.5.9 - Broken Access Control vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-27397 · CVE Program
- CVE-2026-27397 · NVD
- FIRST EPSS
- GHSA-6q79-hwrv-jc95 · 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