CVE-2026-13342

The Security Optimizer WordPress plugin from 1.5.8 to 1.6.4 does not correctly validate requests to its optional IP-based login restriction feature, allowing the restriction to be bypassed so that unauthenticated requests from non-allowlisted IP addresses can reach and use the login form, defeati...

CVE-2026-13342

CVE-2026-13342 affects the Security Optimizer WordPress plugin (versions 1.5.8–1.6.4). The IP-based login restriction can be bypassed due to improper validation, allowing unauthenticated requests from non-allowlisted IPs to access the login form. Impact: defeats administrator-configured access co...

CVE-2026-13342: Protection Mechanism Failure

The Security Optimizer WordPress plugin from 1.5.8 to 1.6.4 does not correctly validate requests to its optional IP-based login restriction feature, allowing the restriction to be bypassed so that unauthenticated requests from non-allowlisted IP addresses can reach and use the login form, defeati...

PT-2026-68643

Name of the Vulnerable Software and Affected Versions Security Optimizer versions 1.5.8 through 1.6.4 Description An IP allowlist bypass exists in the optional IP-based login restriction feature. The software fails to correctly validate requests, allowing unauthenticated users from non-allowliste...

CVE-2026-27750 Avira Internet Security Optimizer TOCTOU

Avira Internet Security contains a time-of-check time-of-use TOCTOU vulnerability in the Optimizer component. A privileged service running as SYSTEM identifies directories for cleanup during a scan phase and subsequently deletes them during a separate cleanup phase without revalidating the target...

WordPress Security Optimizer plugin <= 1.5.0 - Broken Access Control vulnerability

Broken Access Control vulnerability discovered by Rafie Muhammad Patchstack in WordPress Plugin SiteGround Security versions = 1.5.0...