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5.3 Medium

CVE-2026-13342 The Security Optimizer WordPress plugin from 1.5.8 to 1.6.4 does not correctly validate requests to its optional…

Description

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, defeating the access control the administrator configured.

Affected products and versions

Product Affected versions Fixed in
Security Optimizer 1.5 1.5.8 → < 1.6.5 1.6.5

Other CVEs of Security Optimizer

The 2 CVEs of Security Optimizer →
CVE-2026-118185 The Security Optimizer WordPress plugin before 1.6.9 does not limit the number of two-factor authentication codes… 7.5 High
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