CVSS 3.1 Score 8.8 of 10 (high)


Published May 16, 2024


CVE-2024-4838 is a vulnerability affecting the ConvertPlus plugin for WordPress versions up to 3.5.26. The vulnerability allows authenticated attackers with contributor-level access or higher to inject a PHP object through the 'settings_encoded' attribute of the 'smile_modal' shortcode, leading to PHP Object Injection. Although no Proof-of-Concept (POP) chain exists in the vulnerable plugin, if there is a POP chain present via an additional plugin or theme on the target system, it could enable arbitrary file deletion, retrieval of sensitive data, or code execution. The vulnerability has a high base severity and score, with low privileges required and no user interaction needed. It poses a significant risk to organizations as it can potentially compromise the integrity and confidentiality of data on affected WordPress installations.

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