Reported vulnerability

Search Regex 3.5 - Authenticated (Subscriber+) Remote Code Execution via User Meta Serialized String Corruption

Published 15 Oct 2026

Updated 15 Oct 2026

CVE-2026-104932

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

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Wordfence advisory

high · CVSS 8

The Search Regex plugin for WordPress is vulnerable to PHP Object Injection in version 3.5 via deserialization of untrusted input in the replace_all function. This allows authenticated attackers, with subscriber-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Search Regex

Software: plugin · search-regex
Affected versions: Start version unspecified, through 3.5
Fix availability: Fix available
Fixed versions: 3.5.1

Recommended action

Update to version 3.5.1, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/cb801c72-0e50-4df1-88cc-30f8037c6d3c

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

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Source: Wordfence

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Questions about this vulnerability

Which versions of Search Regex are affected?

Wordfence lists these affected versions: Start version unspecified, through 3.5. Use the version checker above to compare your installed release with this report.

Is a fix available for Search Regex?

Wordfence reports a fix for this issue in Search Regex. It lists these fixed versions: 3.5.1. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

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