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Really Simple Security - Security Vulnerability (CVE-2026-8293)

CVE-2026-8293

The Really Simple Security WordPress plugin before 9.5.10.1 does not enforce the second-factor challenge in two of its two-factor authentication REST endpoints, allowing an attacker who knows a user's password to obtain a WordPress authentication session for that user without completing the email OTP challenge.

CVE-2026-8293

HIGH CVSS 7.5 Published 2026-06-02 Updated 2026-07-22
AI Risk High (76/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P2 Urgent
Severity Band HIGH
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Components 1
Reference Links 1
AI Risk Engine High (76/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-06-02 CVE published and first recorded in the threat feed.
  2. 2026-07-22 Record updated with latest vulnerability metadata.
  3. 2026-06-02 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 118 days ago

AI enriched 118 days ago (2026-06-02 23:00 UTC)

Technical Summary

The Really Simple Security WordPress plugin before 9.5.10.1 does not enforce the second-factor challenge in two of its two-factor authentication REST endpoints, allowing an attacker who knows a user's password to obtain a WordPress authentication session for that user without completing the email OTP challenge.

Potential Impact

Severity is HIGH (CVSS 7.5). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential.

Primary risk drivers: remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 76/100 (High, High) with priority P2 Urgent. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Really Simple Security PLUGIN · really-simple-security Affected: < 9.5.10.1 Fixed in: 9.5.10.1

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Really Simple Security to 9.5.10.1 or later.

That is the complete fix. Everything below is what protects you in the meantime.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

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Not sure if you are affected?

Scan your site to see whether it runs Really Simple Security, and at which version.

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Am I affected by this vulnerability?

You are affected if your site runs Really Simple Security. Versions below 9.5.10.1 are vulnerable; that release and later are not.

How do I fix it?

Update Really Simple Security to version 9.5.10.1 or later. That is the complete fix.