Search Regex: PHP object injection
What's happening
Search Regex has a PHP object injection flaw in every version up to 3.5 (included): an attacker can make the site run code it shouldn't, depending on what other plugins it has. It requires a user account, even the most basic one (subscriber): it matters most on sites with open registration, such as shops and membership sites. More than 100,000 websites use it.
What to do
Update Search Regex to version 3.5.1 or later (Dashboard → Plugins in WordPress). If you can't update yet, deactivate it until you can.
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Source: Wordfence Intelligence (Defiant, Inc.). Original record · CVE-2026-104932. Original title: «Search Regex 3.5 - Authenticated (Subscriber+) Remote Code Execution via User Meta Serialized String Corruption».
Data licence
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