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CVE-2023-6933 is a PHP Object Injection vulnerability in the Better Search Replace WordPress plugin affecting all versions up to and including 1.4.4. The flaw is caused by deserialization of untrusted input, allowing unauthenticated remote attackers to supply crafted serialized PHP data that is then unserialized by the application. The vulnerable plugin itself reportedly does not contain a usable POP chain, which limits direct impact in isolation. However, if a property-oriented programming (POP) chain is available through another installed plugin or theme in the same WordPress environment, the injected object can be leveraged to trigger dangerous magic methods and achieve more serious post-deserialization effects.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a comprehensive proof-of-concept (PoC) and testing lab for CVE-2023-6933, a critical PHP Object Injection vulnerability in the Better Search Replace WordPress plugin (versions ≤1.4.4). The structure includes: - A detailed documentation file (CVE-2023-6933_POC_DOCUMENTATION.md) explaining the vulnerability, exploitation methodology, and safe testing practices. - A Nuclei template (nuclei-templates/cve-2023-6933.yaml) for automated, non-intrusive detection and verification of the vulnerability. This template performs plugin version detection and sends a serialized PHP object to the vulnerable AJAX endpoint, confirming the vulnerability through behavioral analysis. - A manual testing script (manual-test.sh) that allows for step-by-step verification, including service health checks, plugin detection, endpoint testing with various payloads (including RCE chains), and summary reporting. - A docker-compose.yml file to deploy a local vulnerable lab environment with WordPress, the vulnerable plugin, MySQL, and phpMyAdmin for testing. - The repository is designed for educational and security research purposes, emphasizing safe, non-destructive testing. The main exploit capability is remote, unauthenticated PHP object injection via the /wp-admin/admin-ajax.php endpoint, which can lead to remote code execution if a suitable gadget chain is present. The repository is Nuclei-compatible and provides both automated and manual exploitation/detection methods.
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4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.