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TI-2026-83473 Aliases CVE-2026-118185GHSA-9wr6-gc4g-7v5m

Missing rate limiting in Security Optimizer allows 2FA bypass

Priority LOW 35CWE-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 Security Optimizer WordPress plugin before 1.6.9 does not limit the number of two-factor authentication codes that can be submitted for a pending login. An attacker who already knows a user's password can brute force the second factor and take over the account. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-01

Description from the CNA

The Security Optimizer WordPress plugin before 1.6.9 does not limit the number of two-factor authentication codes that can be submitted for a pending login, allowing an attacker who already knows a user's password to brute force the second factor and take over the account.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00286 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Security Optimizer (Unknown): 1.6.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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

VendorProductAffected versionsFixed inStatusSource
UnknownSecurity Optimizerbefore 1.6.91.6.9Patch availableCNA
  • Security Optimizer VendorUnknown Affected before 1.6.9 Fixed in 1.6.9 Patch available CNA

Remediation

Update Security Optimizer to version 1.6.9.

Written with Claude Haiku 5.5 from the sources below · 2026-11-01

  • Fix · CNA Security Optimizer (Unknown) Fixed in 1.6.9

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-118185
  2. 2026-10-31 Alias added: GHSA-9wr6-gc4g-7v5m
  3. 2026-11-01 CVSS score added · CISA ADP
  4. 2026-11-01 Weakness changed · CISA ADP
  5. 2026-11-01 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences