Really Simple Security < 9.5.10.1 - Authentication Bypass via Two-Factor OTP Skip
Priority HIGH 68CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Really Simple Security (Unknown): 9.5.10.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| Unknown | Really Simple Security | before 9.5.10.1 | 9.5.10.1 | Patch available | CNA |
- Really Simple Security VendorUnknown Affected before 9.5.10.1 Fixed in 9.5.10.1 Patch available CNA
Remediation
- Fix · CNA Really Simple Security (Unknown) Fixed in 9.5.10.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8293
- 2026-10-03 Alias added: GHSA-g33r-3vq8-q6f4
References
Sources
- CVE-2026-8293 · CVE Program
- CVE-2026-8293 · NVD
- FIRST EPSS
- GHSA-g33r-3vq8-q6f4 · 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