CVE-2026-84829

High

Description

The Optimole WordPress plugin before 4.2.12 does not properly escape a user supplied value before using it to build an image tag attribute, allowing unauthenticated users to inject arbitrary attributes into pages served to every visitor, which leads to Stored Cross-Site Scripting.

SeverityHigh
CVSS8.8
Exploit probability—
ProductOptimole
PublishedSep 16, 2026
First seenSep 16, 2026

How to fix

Update
  • Optimole4.2.12 or later

Affected products

ProductAffected versionsFixed in
Optimole4.2.3 ≤ v < 4.2.124.2.12

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Choose the product and enter the version you run to see whether it falls in the affected range.

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